Summarize the following court judgment. Special Leave Petition (Criminal No. 3038 of 1983. From the Judgment and order dated the 16th August	 1983 951 of the Madhya Pradesh High Court in Criminal Revision No. 260 of 1983. S.K.Gambhir	 Ashok Mahajan and S.S. Kirpalani for the petitioner. The order of the Court was delivered by CHINNAPPA REDDY	 1. On 17.8.1979 the Food Inspector	 Sorar	 purchased 375 grams of Soyabean oil from the shop of the petitioners	 Tulsiram. The Soyabean oil purchased was divided into three parts; each part was filled in a bottle; each bottle was sealed; and	 one of the bottles was sent to the Public Analyst	 Raipur for analysis. The Public Analyst found that the sample was adulterated as it contained traces of cotton seed oil. On 29.11.1979 a complaint was filed on the basis of the report of the Public Analyst	 in the court of the Judicial First Class Magistrate	 Balod. On 17.12.1979 a copy of the report of the Public Analyst was forwarded to the petitioner as required by Rule 9 A of Prevention of Food Adulteration Rules. The accused petitioner however made no application to the Trial Court to have one of the samples sent to the Central Food Laboratory for further analysis. He was content merely to deny offence. After due trial he was convicted by the Magistrate on 8.9.1982	 under section 16(1)(a)(i) of the Prevention Food Adulteration Act and sentenced to suffer rigorous imprisonment for six months and to pay a fine of Rs. 1000. The Appeal preferred by the petitioner to the Sessions Judge	 Durg and the Revision Petition preferred thereafter to the High Court of Madhya Pradesh were rejected. The petitioner now seeks special leave to appeal to this Court under Article 136 of the Constitution. The learned counsel for the petitioner urged before us that Rule 9 A of the Prevention of Food Adulteration Rules	 which has been substituted for Rule 9(j) in 1977	 now prescribes that the Local (Health) Authority shall immediately after the institution of the prosecution forward a copy of the report of the Public Analyst by registered post or by hand to the person from whom the sample was taken by the Food Inspector	 that the word 'immediately ' occurring in Rule 9 A showed that it brooked no delay and that as G there was a delay of 18 days	 in the present case	 in forwarding the report to the petitioner	 the prosecution was vitiated and the petitioner was entitled to be acquitted. He argued that the scheme of the Act was changed by the amendments introduced in 1976 and that in consonance with the revised scheme of the Act 952 the rules were also amended. He invited our attention to the A departure in the language of the present Rule 9 A from the language of old Rule 9(j). The learned counsel also argued that cotton seed oil was more nutritive and consumable than Soyabean oil and	 therefore	 a person mixing cotton seed oil with Soyabean oil could not be said to have adulterated soyabean oil. He invited our attention to Dal Chand vs Municipal Corporation	 Bhopal	 Kashmiri Lal vs State of Haryana ; Kanda Swami vs Food Inspector: State of Maharashtra vs Tukaram Babu Rao Mane; Perumal vs Kumbakonam Municipality ; and Food Inspector vs Prabhkaran. We have considered all of them and we do not think it necessary to launch into a discussion of the cases	 one by one We would rather refer to and construe the relevant statutory provisions and rules ourselves. Suffice to say here that we do not agree with the submissions of the learned counsel. It is true	 in 1976 important changes were made in some of the procedural provisions of the Prevention of Food Adulteration Act. We are concerned in this case with some of the changes made in sections 11 and 13 of the Act and the new Rules made as a consequence. Before the 1976 amendment	 section 11 required the Food Inspector taking a sample for analysis to separate the sample into three parts	 seal or fasten up each part and to deliver one of the parts to the person from whom the sample was taken	 send another part for analysis to the Public Analyst and retain the third part for production in case legal proceedings were taken or for analysis by the Director of the Central Food Laboratory under sub section 2 of section 13 as the case might be. Sub section (1) of old section 13 (as it stood before 1976) required the Public Analyst to deliver to the Food Inspector a report of the analysis of any article of food submitted to him for such analysis. Sub section (2) enabled the accused vendor	 after the institution of the prosecution under the Act	 to apply to the Court to send the part given to him or the part retained with the Food Inspector for production in case of legal proceedings	 to the Director of the Central Food Laboratory for a certificate specifying the result of the analysis to be made by him. The certificate issued by the Director of the Central Food Labora 953 tory was to supersede the report given by the Public Analyst and was to be final and conclusive evidence of the facts stated therein. A Rule 9 (j) of the 1955 Rules prescribed that it shall be the duty of the Food Inspector to send by registered post	 a copy of the report of the Public Analyst to the person from whom the sample was taken within ten days of the receipt of the said report. It is obvious that section 13 (2) was intended to secure to the accused vendor the right to have the report of the Public Analyst tested if he so wanted	 by obtaining the final and conclusive report of the Director of the Central Food Laboratory. In order to enable the accused vendor to exercise this right it was necessary to first make available to him the report of the Public Analyst. So Rule 9 (j) provided that a copy of the report of the Public Analyst should be sent to the person from whom the sample was taken within ten days of the receipt of the report by the Food Inspector. The mention of ten days as the period within which the Food Inspector was to send the report of the Public Analyst to the person from whom the sample was taken led to considerable controversy whether Rule 9 (j) was mandatory or directory. Some High Courts took the view that Rule 9 (j) was mandatory and that failure to strictly comply with the rule was fatal to the prosecution. The matter was finally set at rest by this Court in Dalchand vs Municipal Corporation Bhopal (supra) where it was held that Rule 9 (j) was directory. It was observed : "There are no ready tests or invariable formulae to determine whether a provision is mandatory or directory. The broad purpose of the statute is important. The object of the particular provision must be considered. The link between the two is most important. The weighing of the consequence of holding a provision to be mandatory or directory is vital and	 more often than not	 determinative of the very question whether the provision is mandatory or directory. Where the design of the statute is the avoidance or prevention of public mis chief	 but the enforcement of a particular provision literally to its letter will tend to defeat that design	 the provision must be held to be directory	 so that proof of prejudice in addition to non compliance of the provision is necessary to invalidate the act complained of. It is well to remember that quite often many rules	 though couched in language which appears to be imperative	 are no more than mere instructions to those entrusted 954 with the task of discharging statutory duties for public benefit. The negligence of those to whom public duties are entrusted cannot by statutory interpretation be allowed to promote public mischief and cause public inconvenience and defeat the main object of the statute. It is as well to realise that every prescription of a period within which an act must be done	 is not the prescription of a period of limitation with painful consequences if the act is not done Within that period. Rule 9 (j) of the Prevention of Food Adulteration Act	 as it then stood	 merely instructed the Food Inspector to send by registered post copy of the Public Analyst 's Report to the person from when the sample was taken within 10 days of the receipt of the Report. Quite obviously the period of 10 days was not a period of limitation within which an action was to be initiated or on the expiry of Which a vested right accrued. The period of 10 days was prescribed with a view to expedition and with the object of giving sufficient time to the person from whom the sample was taken to make such arrangements as he might like to challenge the Report of the Public Analyst; for example	 by making a request to the Magistrate to send the other sample to the Director of the Central Food Laboratory for analysis. Where the effect of non compliance with the rule was such as to wholly deprive the right of the person to challenge the Public Analyst 's Report by obtaining the report of the Director of the Central Food Laboratory	 there might be just cause for complaint	 as prejudice would then be writ large. Where no prejudice was caused there could be no cause for complaint. I am clearly of the view that R. 9 (j) of the Prevention of Food Adulteration Rules were directory and not mandatory". As already mentioned by us	 some High Courts had earlier taken the view that the Rule was mandatory and that non compliance with the Rule was fatal to the prosecution. The working of the Act also revealed that often enough the accused vendor would adopt dilatory tactics by waiting till the last minute to exercise his right to apply to the Court to send the sample to the Director of Central Food Laboratory. This statutory right could not be denied to the accused vendor even when made at the very last stages of the case. The result was not merely undue and unnecessary delay in the disposal of the case but fairly frequently	 it would be discovered 955 that the sample had disintegrated due to lapse of time	 thus disabling the Director	 Central Food Laboratory from analysing the sample. With a view to overcome the difficulties encountered in the working of the Act	 sections 11 and 13 were recast by the Amending Act of 1976 and new rules were made in 1977	 new Rule 9 A replacing old Rule 9 (j). Sub section (1) of amended section 11 and the whole of amended section 13 may be usefully extracted here. Section 11 sub section (1) is as follows: "When a food inspector takes a sample of food for analysis	 he shall: (a) give notice in writing then and there of his intention to have it so analysed to the person from whom he has taken the sample and to the person	 if any	 whose name	 address and other particulars have been disclosed under section 14A. (b) except in special cases provided by rules under this Act	 divide the sample then and there into; three parts and mark and seal or fasten up each part in such a manner as its nature permits and take the signature or thumb impression of the person from whom the sample has been taken in such place and in such manner as may be prescribed; Provided that where such person refuses to sign or put his thumb impression the food inspector shall call upon one or more witnesses and take his or their signature or thumb impressions	 of such person: (a) (i) send one of the parts for analysis to the public analyst under intimation	 to the Local (Health) Authority; and (ii) send the remaining two parts to the Local (Health) Authority: for the purposes of sub section (2) of this section and sub sections (2A) and (2E) of section 13". Section 13 is as follows: "(1) The public analyst shall deliver	 in such form as may be prescribed	 a report to the Local (Health) Authority of the result of the analysis of any article of food submitted to him for analysis. 956 (2) On receipt of the report of the result of the analysis under sub section (1) to the effect that the article of food is adulterated	 the local (Health) Authority shall	 after the institution of prosecution against the person from whom the sample of the article of food was taken and the person	 if any	 whose name	 address and particulars have been disclosed under section 14A	 forward	 in such manner as may be prescribed	 a copy of the report of the result of the analysis to such person or persons	 as the case may be	 informing such person or persons that if it is so desired	 either or both of them may make an application to the court within a period of ten days from the date of receipt of the copy of the report to get the sample of the article of food kept by the Local (Health) Authority analysed by the Central Food Laboratory. (2A) When an application is made to the Court under sub section (2)	 the court shall require the Local (Health) Authority to forward the part or parts of the sample kept by the said Authority and upon such requisition being made	 by said Authority shall forward the part or parts of sample to the court with in a period of five days from the date of receipt of such requisite on. (2B) On receipt of the part or parts of the sample from the Local (Health) 'Authority under sub section (2A)	 the court shall first assertion that mark and seal or fastening as provided in clause (b) of sub section (1) of section 11 are intact and the signature or thumb impression	 as the case may be	 is not tampered with	 and despatch the part or	 as the case maybe	 one of the parts of the sample under its own seal to the Director of the Central Food Laboratory who shall thereupon send a certificate to the court in the prescribed form within one month from the date of receipt of the part of the sample specifying the result of the analysis. (2C) Where two parts of the sample have been sent to the court and only one part of the sample has been sent by the court to the Director of the Central Food Laboratory under sub section (2B)	 the court shall	 as soon as 957 practicable	 return the remaining part to the Local (Health) Authority and the Local (Health) Authority shall destroy that part after the certificate from the Director of the Central Food Laboratory has been received by the court; Provided that where the part of the sample sent by the court to the Director of Central Food Laboratory is lost or damaged	 the court shall require the Local (Health) Authority to forward the part of the sample	 if any	 retained by it to the court and on receipt thereof the court shall proceed in the manner provided in sub section (2B). (2D) Until the receipt of the certificate of the result of the analysis from the Director of Central Food Laboratory the court shall not continue with the proceedings pending before it in relation to the prosecution. (2L) It after considering the report	 if any	 of the Food Inspector or otherwise	 the Local (Health) Authority is of the opinion that the report delivered by the public analyst under sub section (1) is erroneous	 the said Authority shall forward one of the parts of the sample kept by it to any other public analyst for analysis and if the report of the result of the analysis of that part of the sample by that public analyst is to the effect that the article of food is adulterated. the provisions of sub section (2) to (2D) shall	 so far as may be apply. (3) The certificate issued by the Director of the Central Food Laboratory under sub section (2B) shall supersede the report given by the public analyst under sub section (1). (4) Where a certificate obtained from the Director of the Central Food Laboratory under sub section (23) is produced in any proceeding under this Act	 or under sections 272 to 276 of the Indian Penal Code	 45 of 1860 it shall not be necessary in such proceeding to produce any part of the sample of food taken for analysis. (5) Any document purporting to be a report signed by a 958 public analyst	 unless it has been supersede under sub section (3) or any document purporting to be a certificate signed by the Director of the Central Food Laboratory	 may be used as evidence of the facts stated therein in any proceeding under this Act or under sections 272 to 276 of the Indian Penal Code 45 of 1980. (Provided that any document purporting to be a certificate signed by the Director of the Central Food Laboratory) (not being a certificate with respect to the analysis of the part of the sample of any article of food referred to in the proviso to sub section (1A) of section (16) shall be final and conclusive evidence of the facts stated therein). Explanation In this section	 and in clause (f) of sub section (1) of section 16	 "Director of the Central Food Laboratory ' shall include the officer for the time being in charge of any Food Laboratory (by whatever designation he is known) recognised by the Central Government for the purpose of this section)". It will be noticed that amended section 11 does not require a part of the sample to be given to the person from whom the sample was taken. While one part is required to be sent to the public Analyst for analysis	 the other two parts are required to be sent to the Local (Health) Authority. The amended section 13 requires the Public Analyst to deliver to the Local (Health) Authority a report of the result of his analysis. Section 13(2) requires the Local (Health) Authority lo forward to the person from whom the sample was taken a copy of the report of the Public Analyst	 if the report is to the effect that the article of food is adulterated. The report is to be forwarded in such manner as maybe prescribed	 after the institution of the prosecution. Thereafter the person from whom the sample was taken is given the right to apply to the court within ten days of the receipt by him of the copy of the Public Analyst 's report to get the sample kept by the Local (Health) Authority analysed by the Central Food Laboratory. It is no longer open to the accused vender to wait till the very last minute to apply to the court to have the sample analysed by the Central Laboratory. If he wants to exercise the statutory right of having the sample analysed by the Central Food Laboratory he has to 959 exercise that right by applying to the court within ten days of receipt	 by him of the Public Analyst 's Report. It is also to be noticed that amended section 13(2) does not prescribe any point of time before which the report of the Public Analyst is to be forwarded to the accused vendor. But	 the very basis of a prosecution for adulteration of food is the report of the Public Analyst that the article of food is adulterated. The accused is given the right to dispute the Public Analyst 's report by applying to the court for an analysis by the Central Food Laboratory. If the report of the Central Food Laboratory is to the effect that the article of food is not adulterated the very basis of the prosecution will disappear. In such an event the further pursuit of the prosecution will be needless and the accused will have to be discharged or acquitted as the case may be. It is therefore to be assumed that the report of the Public Analyst is to be made available to the accused vender at the commencement of the prosecution	 that is to say	 before the prosecution starts leading evidence in the case	 and in good and sufficient time to enable the accused to exercise his right of having the sample analysed by the Central Food Laboratory if he so desires it. We have seen that section 13(2) provides that the Public Analyst 's Report	 shall be forwarded to the person from whom the sample was taken 'in such manner as may be prescribed '. Now	 Rule 9 A of the Rules as amended in 1977 which replaces Rule 9(j) of the old Rules prescribes the manner in which the Public Analyst 's Report may be forwarded to the person from the sample was taken. lt reads as follows: "The Local (Health) Authority shall immediately after the institution of prosecution forward a copy of the report of the result of analysis in Form III delivered to him under sub rule (3) of Rule 7	 by registered post or by hand	 as may be appropriate	 to the person from whom the sample of the article was taken by the Food Inspector	 and simultaneously also to the person	 if any	 whose name	 address and other particulars has been disclosed under Section 14A of the Act; Provided that where the sample conforms to the pro visions of the Act of the Rules made thereunder	 and no prosecution is intended under sub section (2)	 or no action is intended under sub section (2E) of section 13 of the Act	 the Local (Health) Authority shall intimate the 960 result to the vendor from whom the sample has been taken and also to the person	 whose name	 address and other particulars have been disclosed under Section 14A of the Act	 within 10 days from the receipt of the report from the Public Analyst. " The first thing to be noticed is that Rule 9 A carefully refrains from mentioning any definite limit of time such as that found in old Rule 9(j) which gave rise to the controversy whether the Rule was mandatory or directory	 and instead uses the general expression 'immediately. ' The Local (Health) Authority is now required to forward to the person from whom the sample was taken in the manner prescribed	 a copy of the report of the Public Analyst immediately after the institution of the prosecution. While prescribing the manner in which the Report may be forwarded the opening words of Rule 9 A "The Local (Health) Authority shall (immediately) after the institution of the prosecution forward ' ' (bracket in ours)	 are borrowed verbatim from section 13(2) with the word 'immediately ' inserted in between. The Rule making authority could never have intended to amend the statute by super adding the word immediately ' as indeed it was not competent to do. Rule 9 A has to be interpreted so as to keep it in tune with and within the bounds of section 13(2). The departure from the previous rule by refraining from mentioning a definite period of time as was done in the old rule makes it evident that the expression 'immediately ' is used to convey a sense of continuity rather than a sense of urgency. It is not to be understood to mean the very next instant	 the very next hour	 that very day or the very next day. It must be construed in its setting. It is no use turning to dictionaries. Dictionaries give variegated meanings to words. What meaning is to be adopted depends on the context. Rule 9 A is made in the context of the amended section 13(2) which provides for the forwarding of the Public Analyst 's Report to the person from whom the sample was taken after the institution of prosecution and enables that person to apply to the court to have analysed by the Central Food Laboratory the sample kept with the Local (Health) Authority. In the context the expression 'immediately ' is only meant to convey 'reasonable despatch and promptitude ' and no more. The idea is to avoid dilatoriness on the part of officialdom and prevention of unnecessary harassment to the accused. But the idea is not to penalise the prosecution and to provide a technical defence. First to construe 'immediately ' as meaning 'at once ' or 961 'forthwith ' and next to hold delay to be fatal to the prosecution would perhaps be to make Rule 9 A ultra vires section 13(2). We do not think it is permissible to interpret Rule 9 A in such a way. The real question is	 was the Public Analyst 's Report sent to the accused sufficiently early to enable him to properly defend himself by giving him an opportunity at the outset to apply to the court to send one of the samples to the Central Food Laboratory for analysis. If after receiving the Public Analyst 's Report he never sought to apply to the court to have the sample sent to the Central Food Laboratory	 as in the present case ' he may not be heard to complain of the delay in the receipt of the report by him	 unless	 of course	 he is able to establish some other prejudice. Our conclusions on this question are; The expression 'immediately ' in Rule 9 A is intended to convey a sense of continuity rather than urgency. What must be done is to forward the report at the earliest opportunity	 so as to facilitate the exercise of the statutory right under section 13(2) in good and sufficient time before the prosecution commences leading evidence. Non compliance with Rule 9 A is not fatal. It is a question of prejudice. Applying these principles. We find no merit in the submissions based on Rule 9 A. The second submission of the learned counsel	 namely	 that mixing cotton seed oil with Soyabean oil cannot be considered to be adulteration of Soyabean oil and therefore the petitioner was not liable to be convicted under section 16 (1) (a) (i) is equally without any merit. Section 16 (1) (a) (i) makes a person liable to punishment if whether by himself or by any other person on his behalf	 he imports into India or manufactures for sale	 or stores	 sells or distributes any article of food which is adulterated within the meaning of sub clause (m) of clause (ia) of section (2) or misbranded within the meaning of clause (ix) of that section or the sale of which is prohibited under any provision of this Act or any rule made thereunder or by an order of the Food (Health) Authority. It is therefore seen that the sale of an article of food the sale of which is prohibited by any rule made under the Act also renders the person selling the article of food liable to punishment under section (16) (1) (a) (i). Rule 44 (e) prohibits the sale of a mixture of two or more edible oils as an edible oil. A mixture of Soyabean oil and cotton seed oil cannot therefore be sold as Soyabean oil irrespective of whether the mixture has affected the Soyabean oil injuriously or not. The special leave petition is therefore dismissed. S.R. Petition dismissed.

On the basis of the report of the Public Analyst that the sample of soya. bean oil purchased by the Food Inspector	 Sorar on 17.11.79 from the shop of the accused petitioner was found adulterated	 a complaint was filed on 29.11.79 in the Court of the Judicial Magistrate	 Balod. On 17.11.79 a copy of the report of the Public Analyst was forwarded to the petitioner as required by Rule 9A of the Prevention of Food Adulteration Rules. The accused petitioner made no application to the trial Court to have one of the samples sent to the Central Food Laboratory for further analysis	 but was content merely to deny offence. After due trial	 he was convicted by the Magistrate on 8.9.82 under section 16 (1) (a) (i) of the Prevention of Food Adulteration Act and sentenced to suffer rigorous imprisonment for six months and to pay a fine of Rs. 1000. The appeal preferred by the petitioner to the Session Judge	 Durg and the Revision Petition preferred thereafter to the High Court of Madhya Pradesh were dismissed	 Hence the Special leave petition. Dismissing the petition	 the Court	 ^ HELD: 1:1. The expression "immediately" in Rule 9A is intended to convey a sense of continuity rather than urgency. What must be done is to forward the report at the earliest opportunity	 so as to facilitate the exercise of the statutory right under section 13(2) of the Prevention of Food Adulteration Act in Food and sufficient time before the prosecution commences leading evidence. [961C D] 1:2. Non compliance with Rule 9A is not fatal. It is a question of prejudice. Applying this principle. in the instant case	 the trial cannot be said to 950 be vitiated by the delay of eighteen days in forwarding the report of the Public Analyst to the Petitioner. Rule 9A has to be interpreted so as to keep it in tune with	 and within the bounds of section 13(2). The amended section 13(2) does not prescribe any point of time before which the report of the Public Analyst is to be forwarded to the accused vendor. But	 the very basis of a prosecution for adulteration of food is the report of the Public Analyst that the article of food is adulterated The accused is given the right to dispute the Public Analyst 's report by applying to the court for an analysis by the Central Food Laboratory If the report of the Central Food Laboratory is to the effect that the article of food is not adulterated the very basis of the prosecution will disappear. In such an event the further pursuit of the prosecution will be needless and the accused will have to be discharged or acquitted as the case may be. It is therefore to be assumed that the report of the Public Analyst is to be made available to the accused vendor at the commencement of the prosecution	 that is to say	 before the prosecution starts leading evidence in the case	 and in good and sufficient time to enable the accused to exercise his right of having the sample analysed by the Central Food Laboratory if he so desires it. There fore Rule 9A carefully refrains from mentioning any definite limit of time and the expression "immediately" is not to be understood to mean the very next instant	 the very next hour	 that very day or the very next day. Construed in its setting	 the expression "immediately" is only meant to convey 'reasonable despatch and promptitude ' and no more. The idea is to avoid dilatoriness on the part of official dom and prevention of unnecessary harassment to the accused. But the idea is not to penalise the prosecution and to provide a technical defence. If after receiving the Public Analyst 's report the accused never sought to apply to the court to have the sample sent to the Central Food Laboratory	 as in the present case	 he may not be heard to complain of the delay in the receipt of the report by him	 unless	 of course	 he is able to establish some other prejudice. [960E H; 961A B] Dal Chand vs Municipal Corporation	 Bhopal AIR 1983 SC 303; Kashmiri Lal vs State of Haryana 1981 (2) AIPFC 167	 Kanda Swami vs Food Inspector 1982 (1) AIPFAC 322	 Perumal vs Kumbakonam Municipality 1982 (2) AIPFAC 106 and Food Inspector vs Prabhkaran 1983 (1) AIPFAC 84; considered. The mixing of cotton seed oil with soyabean oil is adulteration of soyabean oil incurring liability to be convicted under section 16(1) (a) (i) of the Prevention of Food Adulteration Act. The sale of an article of food the sale of which is prohibited by any rule made under the Act also renders the person selling the article of food liable to punishment under section 16 (l) (i). Rule 44(e) prohibits the sale of a mixture of two or more edible oils as an edible oil. A mixture of soyabean oil and cotton seed oil cannot therefore be sold as soyabean oil irrespective of whether the mixture has affected the soya bean oil injuriously or not. [961E G]