Summarize the following court judgment. Civil Appeal No. 3189/1989. From the Judgment and Order dated 11.3.1987 of the Delhi High Court in C.W.P. No. 875 of 1986 R.B. Datar and Ranjit Kumar for the Appellant. V.B. Saharya for the D.D.A. Jose P. Verghese and O.P. Verma for the Respondent. The Judgment of the Court was delivered by SEN	 J. The main question involved in this appeal from a judgment and order of a Division Bench of the Delhi High Court dated March 11	 1987 is whether the High Court was justified	 in the facts and circumstances of the case	 in issuing a direction to the appellant Municipal Corporation of Delhi to construct a stall or a kiosk on the pavement near the OPD gate of the Irwin Hospital	 Delhi within two months from the date of its order or in the alternative	 to furnish a plan with requisite sanction to the respondent Gurnam kaur to enable her to construct a stall of her own. The issue involved is as to the precedential value of a direction earlier made by this Court on a petition under article 32 of the Constitution based on consent of the parties with the reservation that it should not be treated as a precedent. It appears that sometime in 1984	 the appellant Municipal Corporation of Delhi sought police help to clear the pavement near the OPD gate of the Irwin Hospital	 now known as Lok Nayak Jai Prakash Narain Hospital	 which is one of the largest hospitals in Northern India	 on a complaint made by the Hospital authorities that the pavement hawkers by setting up their stalls or pitching their wares were causing inconvenience to the ingress or egress of the ambulances besides causing congestion on the pavements and obstructing the free flow of traffic. The Municipal Corporation was satisfied that if the squatters continued to cover pathways meant for pedestrians	 a time would come when no room would be left for people to walk on the footpaths. In a police action	 the pavements hawkers were removed from outside the main gate of the Irwin PG NO 933 Hospital in and around the subway of Jawahar Lal Nehru Marg on January 15	 1984. On February 22	 1984	 eight of these pavement squatters instituted separate suits in the Court of the Subordinate Judge	 II Class	 Delhi against the Municipal Corporation seeking the relief of perpetual injunction restraining the appellant	 its officers and servants from interfering with their business of hawking on the pavements out side the main gate of the hospital and/or from demolishing or removing any temporary structures put up by them for plying their trade. In denial of the claim	 the appellant Municipal Corporation pleaded	 inter alia	 (i) that the construction of the kiosks or stalls by the plaintiffs was without permission and therefore amounted to an encroachment on the pavement. The Municipal Corporation accordingly under section 322 of the Delhi Municipal Corporation Act	 1957 had the right and authority to remove such encroachment without notice	 and (ii) that the plaintiffs had no legally enforceable right under the terms of the tehbazari licence	 they having committed violation of the terms and conditions there of besides being in arrears of licence fee. Accordingly	 it pleaded that the plaintiffs ' claim in suit was wholly misconceived. The suits were consolidated together for trial as they raised a common issue. It is common ground that the plaintiffs had each been occupying a site admeasuring 6 ft. x 4 ft. on tehbazari basis since the year 1975. The contention of the plaintiffs was that the Municipal Corporation having itself allotted the plaintiffs licence under section 321 of the Act on tehbazari basis to use the pavement in front of the main gate of the Irwin Hospital for carrying on their business on specific terms and conditions	 such grant of licence or permission gave to them a right under section 430 of the Delhi Municipal Corporation Act	 1957 which could not be terminated unilaterally without affording them an opportunity of a hearing under proviso (a) to sub section (3) of section 430 of the Act. On February 24	 1984	 Shri B.P. Bhalla	 learned counsel appearing for the plaintiffs in all the suits made a statement to the effect: "The plaintiffs shall occupy only 6 ft. x 4 ft. space as allotted to them by the defendants and no further space beyond those limits. They have not constructed any permanent structure on the site and shall not construct any structure thereon	 whether permanent or temporary. ' ' Accordingly	 the learned Subordinate Judge during the course of his judgmeat observed: PG NO 934 "In view of the above statement by the counsel for plaintiffs	 it is clear that the stall if any erected or posted at the suit sites is without authority. Placing of such a stall at the suit site amounts to encroachment within the meaning of sec. 322 of the DMC Act which stall can be removed at any time by the defendant MCD without notice. In this light the plaintiffs have no right to claim an injunction against demolition or removal of any stall or other structure if posted or placed or affat the same time defendant MCD cannot remove the plaintiffs nor interfere with their business at the suit site in any other manner without terminating their licence to occupy the said sites in accordance with the procedure contained in sec. 430(3) of DMC Act. " The learned Judge accordingly partly decreed the plaintiff 's claim to the extent indicated hereafter: "Consequently	 all these suits are partly decreed to the effect that the defendants are restrained permanently from removing the palintiffs from the suit sites without terminating the Tehbazari permission granted in their favour in accordance with the provisions of section 430(3) of the DMC Act. The prayer for injunction against demolition or removal of the stalls of the plaintiffs is disallowed. " It therefore follows that the learned Subordinate Judge accordingly disallowed the plaintiffs main claim seeking a declaration that the Municipal Corporation had no right or authority to remove the stalls built up by them on the pavement in front of the main gate of the Irwin Hospital. He however held that by virtue of the tehbazari licence granted in their favour	 the plaintiffs had acquired the right to occupy and carry on business at the suit site each admeasuring 6 ft. x 4 ft. in question and till their licence was not terminated by the Municipal Corporation after PG NO 935 following the procedure laid down in proviso (a) to sub section (3) of section 430 of the Act. It had no power to remove the plaintiffs nor interfere with their business at the suit sites. It could not take recourse to its power of removal of encroachment without notice under section 322(a) of the Act. It is equally evident that the learned Subordinate Judge partly decreed the plaintiffs ' claim only to that extent that it restrained the Municipal Corporation from taking any steps for removal of such encroachment by the plaintiffs inasmuch as the power under section 322(a) of the Act cannot be exercised without following the procedure laid down in section 430(3) of the Act and without terminating the tehbazari licence granted in their favour. The respondent Gurnam Kaur was one of the plaintiffs and she had been in occupation of a site admeasuring 6 ft. x 4 ft. on the basis of tehbazari licence intermittently since the year 1960 and had been paying the licence fee therefor. The decree passed by the learned Subordinate Judge not having been appealed from by the Municipal Corporation of Delhi has since become final. The rights of the parties therefore stand crystallized by the terms of th decree passed by the learned Subordinate Judge. There was a further development. Two of the squatters	 namely	 one Jamna Das and his brother moved this Court by petition under article 32 of the Constitution	 being Writ Petition Nos. 981 82/84 Jamna Das & Anr. vs Delhi Administration & Ors.	 seeking a writ in the nature of mandamus ordaining the Municipal Corporation to allot each of them a suitable site on the pavement in front of the main gate of the Irwin Hospital. Their grievance was that they were similarly situate like 10 other squatters who were all plying their trade on the pavement in front of the main gate of the Irwin Hospital catering to the needs of the visitors to the hospital by selling tea	 snacks	 pan	 bidi etc. and although the Municipal Corporation had rehabilitated the said 10 squatters by allotment of stalls to them	 despite repeated applications there was no redressal of the wrong done to them inasmuch as the Municipal Corporation had arbitrarily and without any rational basis	 denied them such facility. Further	 it was alleged in that case that the father of the petitioners had been occupying the site admeasuring 6 ft. x 4 ft. on tehbazari licence since the year 1947 till his death in 1975 and thereafter the petitioners were permitted to occupy the same on similar terms but the Municipal Corporation illegally caused their removal with police help. It was averred that the Municipal Corporation could not take recourse to its power of eviction under section 322(a) of the Act without terminating the tehbazari licence in their favour and without following the procedure prescribed by proviso (a) to section 430(3) of the Act. Several adjournments were taken in an effort to find a solution to PG NO 936 the problem by learned counsel appearing for the Municipal Corporation. Eventually	 Desai	 J. speaking for a Bench of two Judges by his order dated March 29	 1985 made a direction for rehabilitation of the petitioners. Virtually	 it was a consent order as learned counsel appearing both for the Delhi Development Authority and the Municipal Corporation requested the Court to give a direction keeping in view the sketch plan furnished by the Municipal Corporation	 and gave an undertaking that any direction made by the Court for rehabilitation of the petitioners would be carried out. The Court accordingly directed that the petitioners be rehabilitated by the Municipal Corporation by construction of stalls according to the sketch plan with a further direction that each of them would be put in possession of one of the stalls. The direction was however made subject to the condition that such construction of stalls would not cause any further obstruction to the free flow of traffic. The Court also made it clear that the direction should not be treated as a precedent. Presumably because of the direction made by this Court in Jamna Das ' case. the respondent Gurnam Kaur moved the High Court under article 226 of the Constitution in April	 l986 for the issuance of an appropriate writ or direction restraining the Municipal Corporation from evicting her without the due process of law. A Division Bench of the High Court by the impugned judgment has partly allowed the writ petition holding that the judgment of the learned Subordinate Judge which was a judgment inter partes had become final	 not having been appealed from and therefore the respondent could not be removed from pitching her stall on the pavement outside the main OPD gate of the Irwin Hospital where she was squatting. The learned Judges relied upon the decision of this Court in Jamna Das case where a direction was made requiring the Municipal Corporation to construct stall for the petitioners in that case	 so that they could be rehabilitated. The learned Judges felt that it was equally desirable that the respondent Gurnam Kaur instead of being allowed to squat on the pavement	 should be provided with a stall of the same pattern and design as had been done for the two squatters in Jamna Das case. The High Court gave an option to the Municipal Corporation either to construct a stall similar to the one they had constructed in compliance with the direction made by this Court in Jamna Das ' case or	 in the alternative	 furnish to the respondent a plan of the stall with requisite permission so that she could build her own stall accordingly. PG NO 937 We find it rather difficult to sustain the judgment of the High Court. The learned Judges failed to appreciate that this Court in Jamna Das ' case made a direction with the consent of parties and with the reservation that it should not be treated as a precedent. It expressed no opinion on the question whether there was any statutory obligation cast on the Municipal Corporation to provide alternative site to a person making illegal encroachment on a public place like any public street etc. contrary to section 320 of the Act	 as a condition precedent to the exercise of its powers under section 322 of the Act for the removal of such encroachment on any public street	 footpath or pavement. That apart	the High Court could not have made the impugned direction contrary to the provisions contained in sections 320 and 322 of the Act. section 320(1) in terms creates a statutory bar against illegal encroachment on any portion of a public street. It provides that "No person shall	 except with the permission of the Commissioner granted in this behalf	 erect or set up any booth or other structure whether fixed or movable or whether of a permanent or temporary nature	 or any fixture in or upon any street etc". Having regard to this express provision	 the High Court failed to see that the respondent Gurnam kaur had no legally enforceable right to the grant of a writ or direction in the nature of mandamus. The High Court could not obviously issue any such direction which would be tantamount to a breach of the law. Furthermore the High Court could not also make the impugned direction in view of the provision contained in section 322(a) of the Act	 which expressly confers power on the Commissioner to cause the removal of any structure which constitutes an encroachment on a public place like a street which is meant for the use of the pedestrains. It is axiomatic that when a direction or order is made by consent of the parties	 the Court does not adjudicate upon the rights of the parties nor lay down any principle. Quotability as 'law ' applies to the principle of a case	 its ratio decidendi. The only thing in a Judge 'sdecision binding as an authority upon a subsequent Judge is the principle upon which the case was decided. Statements which are not part of the ratio decidendi are distinguished as obiter dicta and are not authoritative. The task of finding the principle is fraught with difficulty because without an investigation into the facts	 as in the present case	 it could not be assumed whether a similar direction must or ought to be made as a measure of social justice. That being so	 the direction made by this Court in Jamna Das ' case could not be treated to be a precedent. The High Court failed to realise that the direction in Jamna Das 'case was made not only with the consent of the parties but there was an interplay of various factors and the Court was moved by compassion to evolve a situation to mitigate hardship which PG NO 938 was acceptable by all the parties concerned. The Court no doubt made incidental observation to the Directive Principles of State Policy enshrined in article 38(2) of the Constitution and said: "Article 38(2) of the Constitution mandates the State to strive to minimise	 amongst others	 the inequalities in facilities and opportunities amongst individuals. One who tries to survive by one 's own labour has to be encouraged because for want of opportunity destitution may disturb the conscience of the society. Here are persons carrying on some paltry trade in an open space in the scorching heat of Delhi sun freezing cold or torrential rain. They are being denied continuance at that place under the specious plea that they constitute an obstruction to easy access to hospitals. A little more space in the access to the hospital may be welcomed but not at the cost of someone being deprived of his very source of livelihood so as to swell the rank of the fast growing unemployed. As far as possible this should be avoided which we propose to do by this short order. " This indeed was a very noble sentiment but incapable of being implemented in a fast growing city like the metropolitan City of Delhi where public streets are overcrowded and the pavement squatters create a hazard to the vehicular traffic and cause obstruction to the pedestrians on the pavement. Pronouncements of law	 which are not part of the ratio decidendi are classed as obiter dicta and are not authoritative. With all respect to the learned Judge who passed the order in Jamna Das ' case and to the learned Judge who agreed with him	 we cannot concede that this Court is bound to follow it. It was delivered without argument	 without reference to the relevant provisions of the Act conferring express power on the Municipal Corporation to direct removal of encroachments from any public place like pavement or public streets	 and without any citation of authority. Accordingly	 we do not propose to uphold the decision of the High Court because	 it seems to us that it is wrong in principle and cannot be justified by the terms of the relevant provisions. A decision should be treated as given per incuriam when it is given in ignorance of the terms of a statute or of a rule having the force of a statute. So far as the order shows	 no argument was addressed to the Court on the question or not whether any direction could properly be made compelling the Municipal Corporation to construct a stall at the pitching site of a PG NO 939 pavement squatter. Professor P.J. Fitzgerald	 editor of the Salmond on Jurisprudence	 12th edn. explains the concept of sub silentio at p. 153 in these words: "A decision passes sub silentio	 in the technical sense that has come to be attached to that phrase	 when the particular point of law involved in the decision is not perceived by the court or present to its mind. The Court may consciously decide in favour of one party because of point A	 which it considers and pronounces upon. It may be shown	 however	 that logically the court should not have decided in favour of the particular party unless it also decided point B in his favour; but point B was not argued or considered by the court. In such circumstances	 although point B was logically involved in the facts and although the case had a specific outcome	 the decision is not an authority on point B. Point B is said to pass sub silentio. In Gerard vs Worth of Paris Ltd. (k). 	 [1936] 2 All E.R. 905 (C.A.)	 the only point argued was on the question of priority of the claimant 's debt	 and	 on this argument being heard	 the Court granted the order. No consideration was given to the question whether a garnishee order could properly be made on an account standing in the name of the liquidator. When	 therefore	 this very point was argued in a subsequent case before the Court of Appeal in Lancaster Motor Co. (London) Ltd. vs Bremith	 Ltd.	 the Court held itself not bound by its previous decision. Sir Wilfrid Greene	 M.R.	 said that he could not help thinking that the point now raised had been deliberately passed sub silentio by counsel in order that the point of substance might be decided. We went on to say that the point had to be decided by the earlier court before it could make the order which it did; nevertheless	 since it was decided "without argument	 without reference to the crucial words of the rule	 and without any citation of authority"	 it was not binding and would not be followed. Precedents sub silentio and without argument are of no moment. This rule has ever since been followed. One of the chief reasons for the doctrine of precedent is that a matter that has once been fully argued and decided should not be allowed to be reopened. The weight accorded to dicta varies with the type of dictum. Mere casual expressions carry no weight at all. Not every passing expression of a Judge	 however eminent	 can be treated as an ex cathedra statement	 having the weight of authority. PG NO 940 At the end of the day	 we must make a mention that Shri Verghese	 learned counsel for the respondent made a valiant effort to bring into play the principles laid down by this Court in Olga Tellis & Ors. vs Bombay Municipal Corporation & Ors.	 ; and Bombay Hawkers ' Union & Ors. vs Bombay Municipal Corporation & Ors.	 ; We are afraid	 we cannot permit the question to be raised for two reasons. In the first place	 no such point was taken in the writ petition nor any contention advanced before the High Court that the removal of the illegal encroachment by the Municipal Corporation constitutes a threat to life and liberty guaranteed under article 21 of the Constitution or that the right to life includes a right to livelihood. Secondly	 the rights of the parties now stand crystallized by the aforementioned judgment of the learned Subordinate Judge in the suit brought by the respondent	 and the rights have to be worked out in terms of the decree passed by him which has since become final. Besides	 the decision in Olga Tellis is of little avail. Chandrachud	 CJ. speaking for the Constitution Bench observed that the word 'life ' in article 21 included livelihood	 but upheld the validity of sections 313(1) and 314 of the Bombay Municipal Corporation Act	 1888 which provided that the Commissioner may 'without notice	 cause to be removed ' obstructions as an encroachment on footpaths could not be regarded as unreasonable	 unfair or unjust. The learned Chief Justice however said that the section conferred a discretionary power which like all power must be exercised reasonably and in conformity with the provisions of our Constitution. In Bombay Hawkers ' Union	 Chandrachud	 CJ. speaking for himself and one of us (Sen	 J.) held that the impugned provision was in the nature of a reasonable restriction in the interests of the general public	 on the exercise of the right of hawkers to carry on their trade or business. The learned Chief Justice added: "No one has any right to do his or her trade or business so as to cause nuisance	 annoyance or inconvenience to the other members of the public. Public streets are meant for the use of the general public and cannot be used to facilitate the carrying on of private trade or business. " These cases undoubtedly raise a human problem and both the Delhi Development Authority as well as the Municipal Corporation of Delhi should seek to evolve an innovative plan to rehabilitate the unfortunate persons who by force of circumstances are forced to ply their trade by squatting in the open on the pavements. At the same time	 these pavement squatters create a serious problem to the civic administration as it creates congestion on the public streets and obstructs free flow of traffic. As Chandrachud	 PG NO 941 CJ. rightly observed in Bombay Hawkers ' Union: "No one has a right to do his or her trade or business so as to cause nuisance	 annoyance or inconvenience to the other members of the public"	 and further that "All public streets are meant for the use of the general public and cannot be used to facilitate the carrying on of private trade or business". We feel that the Municipal Corporation authorities in consultation with the Delhi Development Authority should endeavour to find a solution on the lines as suggested in Bombay Hawkers ' Union i.e. by creating Hawking and Non Hawking Zones and shifting the pavement squatters to areas other than Non Howking Zones. The authorities in devising a scheme must endeavour to achieve a twin object viz.	 to preserve and maintain the beauty and the grandeur of this great historic city of Delhi from an aesthetic point of view	 by reducing congestion on the public streets and removing all encroachments which cause obstruction to the free flow of traffic	 and rehabilitate those unfortunate persons who by force of circumstances	 are made to ply their trade or business on pavements or public streets. In the result	 the appeal must succeed and is allowed. The judgment and order passed by the High Court are set aside and the writ petition filed by the respondent in the High Court is dismissed. We direct however that the appellant Municipal Corporation of Delhi shall act in conformity with the judgment of the Subordinate Judge	 II Class	 Delhi in the aforementioned suits	 which	 not having been appealed from	 has since become final inter partes. No costs.

Some persons were plying their business by squatting on pavement in front of a hospital in Delhi and had put up stalls or kiosk allegedly on Tehbazari under a licence under section 321 of the Delhi Municipal Corporation Act	 1957. The Delhi Municipal Corporation tried to remove them by demolishing their stalls etc. These persons filed suits in the Court of Subordinate Judge praying for perpetual injunction restraining the Corporation from interfering with their business and/or removing or demolishing any temporary structures put up by them for plying their trade. The Subordinate Judge disallowed the plaintiffs ' main claim seeking a declaration that the Municipal Corporation had no right or authority to remove the stalls built up by them. He however held that by virtue of the Tehbazari licence granted in their favour the plaintiffs had acquired the right to occupy and carry on business at the suit sites till their licence was not terminated by the Corporation according to the procedure laid down in proviso (a)(ii) of Sub Section of Section 430 of the Act. Two of the squatters namely Jamuna Das and his brother filed writ petitions in this Court seeking a writ of mandamus ordaining the Municipal Corporation to allot each of them a suitable site on pavement in front of the main gate of the hospital. (Jamna Das & Anr. vs PG NO 929 PG NO 930 Delhi Administration & Ors.	 Writ Petition Nos. 981 982 of 1984.) This Court directed that the petitioners be rehabilitated by the Municipal Corporation by construction of stalls according to the sketch plan filed by the Corporation with a further direction that each of them would be put in possession of one of the stalls. The Court made it clear that this was a consent order and that the direction should not be treated as a precedent. The respondent	 who was one of the plaintiffs who had filed suits in the court of Subordinate Judge	 moved the High Court under Article 226 of the Constitution for a writ and direction restraining the Corporation from evicting her without the due process of law. The High Court partly allowed the writ petition holding that the judgment of the Learned Subordinate Judge which was a judgment inter partes had become final not having been appealed from and therefore the respondent could not be removed from pitching her stall on the pavement outside the hospital where she was squatting. Relying on the decision of this Court in Jamuna Das ' case the High Court gave an option to the Corporation either to construct the stall similar to the one they have constructed in compliance with the direction made by this Court in Jamuna Das ' case or in the alternative furnish to the respondent a plan of the stall with requisite permission so that she could build her own stall accordingly. Feeling aggrieved by this Judgment of the High Court	 the Municipal Corporation filed this appeal by special leave. Allowing the appeal this Court	 HELD: The Learned Judges of the High Court failed to appreciate that this Court in Jamna Das ' case made a direction with the consent of parties and with the reservation that it should not be treated as a precedent. It expressed no opinion on the question whether there was any statutory obligation cast on the Municipal Corporation to provide alternative site to a person making illegal encroachment on a public place like any public street etc. contrary to Section 320 of the Act as a condition precedent to the exercise of its powers under section 322 of the Act for the removal of such encroachment on any public street	 footpath or pavement. That apart	 the High Court could not have made the impugned direction contrary to the provisions contained in sections 320 and 322 of the Act. [937A C It is axiomatic that when a direction or order is made by consent of the parties	 the Court does not adjudicate upon the rights of the parties nor lay down any principle. Quotability as 'law ' applies to the principle of a case	 its ratio decidendi. The only thing in a Judge 's decision PG NO 931 binding as an authority upon a subsequent Judge is the principle upon which the case was decided. Statements which are not part of the ratio decidendi are distinguished as obiter dicta and are not authoritative. The task of finding the principle is fraught with difficulty because without an investigation into the facts	 as in the present case	 it could not be assumed whether a similar direction must or ought to be made as a measure of social justice. That being so	 the direction made by this Court in Jamna Das ' case could not be treated to be a precedent. The High Court failed to realise that the direction in Jamna Das ' case was made not only with the consent of the parties but there was an interplay of various factors and the Court was moved by compassion to evolve a situation to mitigate hardship which was acceptable by all the parties concerned. [937F H; 938A] Pronouncements of law	 which are not part of the ratio decidendi are classed as obiter dicta and are not authoritative. With all respect to the learned Judge who passed the order in Jamna Das ' case and to the learned Judge who agreed with him	 we cannot concede that this Court is bound to follow it. It was delivered without argument	 without reference to the relevant provisions of the Act conferring express power on the Municipal Corporation to direct removal of encroachments from any public place like pavements or public streets	 and without any citation of authority. Accordingly	 we do not propose to uphold the decision of the High Court because	 it seems to us that it is wrong in principle and cannot be justified by the terms of the relevant provisions. [938F G ] A decision should be treated as given per incuriam when it is given in ignorance of the terms of a statute or of a rule having the force of a statute. [938G H] Salmond on Jurisprudence by P.J. Fitzgerald	 12th Ed.; Gerard vs Worth of Paris Ltd. (K)	 and Lancaster Motor Co. (London) Ltd. vs Bremith Ltd.	 	 referred to. Precedents sub silentio and without argument are of no moment. This rule 'has ever since been followed. One of the chief reasons for the doctrine of precedents is that a matter that has once been fully argued and decided should not be allowed to be reopened. The weight accorded to dicta varies with the type of dictum. Mere casual expressions carry no weight at all. Not every passing expression of a Judge	 however eminent	 can be treated as an ex cathedra statement. having the weight of authority. [939G H] PG NO 932 Olga Tellis & Ors. vs Bombay Municipal Corporation & Ors.	 ; and Bombay Hawkers ' Union & Ors. vs Bombay Municipal Corporation & Ors.	 ; 	 referred to.