Summarize the following court judgment. Civil Appeal No. 2526 of 1972. Appeal from the Judgment and Order dated the 13th January	 1972 of the Calcutta High Court in Matter No. 326 of 1967. G. C. Sharma and section P. Nayar	 for the Appellant. D. Pal	 B. Sen	 (Mrs.) Leila Seth	 P. K. Pal	 section R. Agarwala and Parveen Kumar for the Respondent. The Judgment of the Court was delivered by KHANNA	 J. This appeal on certificate is against the Full Bench judgment of the Calcutta High Court whereby on petition under article 226 of the Constitution of India filed by the respondent that court by majority quashed notice under section 148 of the Income tax Act	 1961 (hereinafter referred to as the Act) issued by appeallant No. 2 (Income tax Officer E Ward	 Hundi Circle	 Calcutta) (hereinafter referred to 958 as the appellant) for the purpose of reopening assessment of the income of the respondent for the assessment year 1958 59. The respondent was assessed for the assessment year 1958 59 under section 23(3) of the Indian Income tax Act	 1922 on June 14	 1960. His total income was assessed to be Rs. 37	872. While making the assessment the Income tax Officer allowed deduction of a sum of Rs. 15	991 by way of expenses claimed by the respondent. The expenses included Rs. 10	494/4 As/3 Pies by way of interest. According to the respondent	 he produced through his authorised representative all books of accounts	 bank statements and other necessary documents in connection with the return. On March 14	 1967 the respondent received notice dated March 8	 1967 issued by the appellant under section 148 of the Act stating that the appellant had reason to believe that the respondent 's income which was chargeable to tax for the assessment year 1958 59 had escaped assessment within the meaning of section 147 of the Act and that the notice was being issued after obtaining the necessary satisfaction of the Commissioner of Income tax. The respondent was called upon to submit within 30 days from the date of the service of the notice a return in the prescribed form of his income for the assessment year 1958 59. On May 2	 1967 the respondent through his lawyer stated that there was no material on which the appellant had reason to believe that the respondent 's income had escaped assessment and	 therefore	 the condition precedent for the assumption of jurisdiction by the appellant had not been satisfied. The appellant was said to have no competence or jurisdiction to re open the assessment under section 147 of the Act on a mere change of opinion. The appellant was also called upon to furnish all the materials on which he had reason to believe that income had escaped assessment. As	 according to the respondent	 there was no satisfactory response from the appellant	 he filed petition under article 226 of the Constitution for quashing the impugned notice. It was denied in the affidavit on behalf of the appellant that all materials relevant and necessary for the assessment of the respondent 's income for the assessment year 1958 59 had been produced before the Income tax Officer at the time of the original assessment. It was further stated: "Subsequent to the assessment for the assessment year 1958 59	 it was discovered	 inter alia	 that some of the loans shown to have been taken and interests alleged to have been paid thereon by the petitioner during the relevant assessment year were not genuine. The Income tax Officer had reason to believe and bona fide believed that the said alleged loans and the interest alleged to have been paid thereon are not genuine. If necessary	 I crave leave to produce before the hon 'ble Judge hearing the application	 the relevant records on the basis of which the said Income tax Officer had reason to believe that the income of the petitioner escaped assessment as aforesaid at the hearing of the application. " During the pendency of the proceedings the High Court directed that a copy of the report made by the appellant to the Commissioner of 959 Income tax for obtaining latter 's sanction under section 147 be produced. The report was accordingly produced	 and the same reads as under: "There are hundi loan credits in the name of Narayan singh Nandalal	 D. K. Naraindas	 Bhagwandas Srichand	 etc.	 who are known name lenders	 and also hundi loan credit in the name	 Mohansingh Kanayalal	 who has since confessed he was doing only name lending. In the original assessment these credits were not investigated in detail. As the information regarding the bogus nature of these credits is since known	 action under section 147 (a) is called for to reopen the assessment and assess these credits as the undisclosed income of the assessee. The assessee is still claiming that the credits are genuine in the assessment proceedings for 1962 63. Commissioner 's sanction is solicited to reopen the assessment for 1958 59	 under section 147(a). " All the three Judges who constituted the Full Bench found that the assessee was not being charged with omission to disclose all facts: he was charged for having made an untrue disclosure because the assessee had stated that he had received certain sums of money from certain persons as loans when	 in fact	 he had not received any sum at all from these persons. It was also stated by the assessee at the time of the original assessment that he had paid interest to certain persons when	 in fact	 he had not	 if the information received later was true. The duty of the assessee	 it was held	 was not only to make a full disclosure of all material facts	 his duty was also to make a true disclosure of facts and not to mislead the assessing officer by disclosing certain things which did not represent facts. The High Court accordingly held that once an assessee infringes this rule	 any subsequent discovery of fact by the assessing officer which would raise a resonable belief in his mind that the assessee had not made a true and correct disclosure of the facts and had thereby been responsible for escapement of his income from assessment would attract section 147 of the Act. Two of the learned Judges	 A. K. Mukherjea and section K. Mukherjea JJ.	 however	 took the view that the conditions precedent for the exercise of jurisdiction by the Income tax Officer under section 147 of the Income tax Act were not fulfilled in the case as the report submitted by the Income tax Officer to the Commissioner for sanction under section 147(a) was defective. The defects in the report	 in the opinion of the High Court	 were the same as had been pointed out by this Court in the case of Chhugamal Rajpal vs section P. Chaliha.(1) The Commissioner	 while according permission for taking action under section 147	 it was observed	 acted mechanically because the Commissioner had not expressly stated that he was satisfied that this was a fit case for the issue of notice under section 148. As against the majority	 Sabyasachi Mukherji J. held that notice under section 148 of the Act was valid and did not suffer from any infirmity. It was 960 also observed that the Commissioner of Income tax had not acted improperly in giving sanction. In the result	 by majority the High Court quashed the notice issued by the appellant to the respondent. In appeal before us Mr. Sharma on behalf of the appellants has assailed the judgment of the majority of the learned Judges in so far as they have held that the report submitted by the Income tax Officer to the Commissioner of Income tax for sanction was defective. As against that	 Dr. Pal on behalf of the assessee respondent has canvassed for the correctness of the view taken by the majority regarding the defective nature of the report. Dr. Pal has in his own turn assailed the finding of all the three learned Judges of the High Court in so far as they have held that the assessee was being charged with omission to disclose true facts. Contention has also been advanced by Dr. Pal that the material on the basis of which the Income tax Officer initiated these proceedings for reopening the assessment did not have a rational connection with the formation of the belief that the assessee had not made a true disclosure of the facts at the time of the original assessment. Before dealing with the points of controversy	 it would be useful to reproduce the relevant provisions of the Act. Sections 147 and 148 which deal with income escaping assessment and issue of notice where income has escaped assessment read as under: "147. Income escaping assessment. If (a) the Income tax Officer has reason to believe that	 by reason of the omission or failure on the part of an assessee to make a return under section 139 for any assessment year to the Income tax Officer or to disclose fully and truly all material facts necessary for his assessment for that year	 income chargeable to tax has escaped assessment for that year	 or (b) notwithstanding that there has been no omission or failure as mentioned in clause (a) on the part of the assessee	 the Income tax officer has in consequence of information in his possession reason to believe that income chargeable to tax has escaped assessment for any assessment year	 he may	 subject to the provisions of section 148 to 153	 assess or ressess such income or recompute the loss or the depreciation allowance	 as the case may be	 for the assessment year concerned (hereinafter in sections 148 to 153 referred to as the relevant assessment year). Explanation 1. For the purposes of this section	 the following shall also be deemed to be cases where income chargeable to tax has escaped assessment	 namely: (a) where income chargeable to tax has been under assessed; or 961 (b) where such income has been assessed at too low a rate; or (c) where such income has been made the subject of excessive relief under this Act or under the Indian Income tax Act	 1922 (XI of 1922); or (d) where excessive loss or depreciation allowance has been computed. Explanation 2. Production before the Income tax Officer of account books or other evidence from which material evidence could with due diligence have been discovered by the Income tax Officer will not necessarily amount to disclosure within the meaning of this section. Issue of notice where income has escaped assessment. (1) Before making the assessment	 reassessment or recomputation under section 147	 the Income tax Officer shall serve on the assessee a notice containing all or any of the requirements which may be included in a notice under sub section (2) of section 139; and the provisions of this Act shall	 so far as may be	 apply accordingly as if the notice were a notice issued under that sub section. (2) The Income tax Officer shall	 before issuing any notice under this section	 record his reason for doing so. " Sub section (1) of section 149 prescribes the time limit for notice and reads as under: "(1) No notice under section 148 shall be issued" (a) in cases falling under clause (a) of section 147 (i) for the relevant assessment year	 if eight years have elapsed from the end of that year	 unless the case falls under sub clause (ii); (ii) for the relevant assessment year	 where eight years	 but not more than sixteen years	 have elapsed from the end of that year	 unless the income chargeable to tax which has escaped assessment amounts to or is likely to amount to rupees fifty thousand or more for that year; (b) in cases falling under clause (b) of section 147	 at any time after the expiry of four years from the end of the relevant assessment year. " Section 151 pertains to the sanction for issue of notice and reads as under: "151. Sanction for issue of notice. (1) No notice shall be issued under section 148 after the expiry of eight years from the end of the relevant assessment year	 unless the Board is satisfied on the reasons recorded by the Income tax Officer that it is a fit case for the issue of such notice. 962 (2) No notice shall be issued under section 148 after the expiry of four years from the end of the relevant assessment year	 unless the Commissioner is satisfied on the reasons recorded by the Income tax Officer that it is a fit case for the issue of such notice. " The provisions of sections 147 to 153 of the Act correspond to those of section 34 of the Indian Income tax Act	 1922. There have been some points of departure from the old law	 but it is not necessary for the purpose of the present case to refer to them. It would appear from the perusal of the provisions reproduced above that two conditions have to be satisfied before an Income tax Officer acquires jurisdiction to issue notice under section 148 in respect of an assessment beyond the period of four years but within a period of eight years from the end of the relevant year	 viz.	 (1) the Income tax Officer must have reason to believe that income chargeable to tax has escaped assessment	 and (2) he must have reason to believe that such income has escaped assessment by reason of the omission or failure on the part of the assessee (a) to make a return under section 139 for the assessment year to the Income tax Officer	 or (b) to disclose fully and truly material facts necessary for his assessment for that year. Both these conditions must co exist in order to confer jurisdiction on the Income tax Officer. It is also imperative for the Income tax Officer to record his reasons before initiating proceedings as required by section 148(2). Another requirement is that before notice is issued after the expiry of four years from the end of the relevant assessment years	 the Commissioner should be satisfied on the reasons recorded by the Income tax Officer that it is a fit case for the issue of such notice. We may add that the duty which is cast upon the assessee is to make a true and full disclosure of the primary facts at the time of the original assessment. Production before the Income tax Officer of the account books or other evidence from which material evidence could with due diligence have been discovered by the Income tax Officer will not necessarily amount to disclosure contemplated by law. The duty of the assessee in any case does not extend beyond making a true and full disclosure of primary facts. Once he has done that his duty ends. It is for the Income tax Officer to draw the correct inference from the primary facts. It is no responsibility of the assessee to advise the Income tax Officer with regard to the inference which he should draw from the primary facts. If an Income tax Officer draws an inference which appears subsequently to be erroneous	 mere change of opinion with regard to that inference would not justify initiation of action for reopening assessment. The grounds or reasons which lead to the formation of the belief contemplated by section 147(a) of the Act must have a material bearing on the question of escapement of income of the assessee from assessment because of his failure or omission to disclose fully and truly all material facts. Once there exist reasonable grounds for the Income tax Officer to form the above belief	 that would be sufficient to clothe him with jurisdiction to issue notice. Whether the grounds are adequate or not is not a matter for the court to investigate. The 963 sufficiency of grounds which induce the Income tax Officer to act is	 therefore	 not a justiciable issue. It is	 of course	 open to the assessee to contend that the Income tax Officer did not hold the belief that there had been such non disclosure. The existence of the belief can be challenged by the assessee but not the sufficiency of reasons for the belief. The expression "reason to believe" does not mean a purely subjective satisfaction on the part of the Income tax Officer. The reason must be held in good faith. It cannot be merely a pretence. It is open to the court to examine whether the reasons for the formation of the belief have a rational connection with or a relevant bearing on the formation of the belief and are not extraneous or irrelevant for the purpose of the section. To this limited extent	 the action of the Income tax Officer in starting proceedings in respect of income escaping assessment is open to challenge in a court of law [see observations of this Court in the cases of Calcutta Discount Co. Ltd. vs Income tax Officer and section Narayanappa & Ors. vs Commissioner of Income tax while dealing with corresponding provisions of the Indian Income tax Act	 1922]. Keeping the above principles in view	 we may now turn our attention to the facts of the present case. Two grounds were mentioned in the report made by the Income tax Officer for reopening the assessment of the assessee respondent with a view to show that his income had been under assessed because of his failure to disclose fully and truly material facts necessary for the assessment. One was that Mohansingh Kanayalal	 who was shown to be one of the creditors of the assessee	 had since confessed that he was doing only name lending. The other ground was that Narayansingh Nandalal	 D. K. Naraindas	 Bhagwandas Srichand	 etc.	 whose names too were mentioned in the list of the creditors of the assessee	 were known name lenders. So far as the second ground is concerned	 neither the majority of the Judges of the High Court nor the learned Judge who was in the minority relied upon that ground. Regarding that ground	 the learned Judge who was in the minority observed that no basis had been indicated as to how it became known that those creditors were known namelenders and when it was known. The majority while not relying upon that ground placed reliance upon the case of Chhugamal Rajpal (supra). In that case the Income tax Officer while submitting a report to the Commissioner of Income tax for obtaining his sanction with a view to issue notice under section 148 of the Act stated: "During the year the assessee has shown to have taken loans from various parties of Calcutta. From D.I. 's Inv. No. A/P/Misc. (5) D.I./63 64/5623 dated August 13	 1965	 forwarded to this office under C.I.T.	 Bihar and Orissa	 Patna 's letter No. Inv. (Inv.) 15/65 66/1953 2017 dated Patna September 24	 1965 it appears that these persons are name lenders and the transactions are bogus. Hence	 proper investigation regarding these loans is necessary. The names of some of the persons from whom money is alleged to have been taken on loan on hundis are: 1. Seth Bhagwan Singh Sricharan 964 2. Lakha Singh Lal Singh 3. Radhakissen Shyam Sunder The amount of escapement involved amounts to Rs. 1	00	000. " In dealing with that report this Court observed: "From the report submitted by the Income tax Officer to the Commissioner	 it is clear that he could not have had reasons to believe that by reason of the assessee 's omission to disclose fully and truly all material facts necessary for his assessment for the accounting year in question	 income chargeable to tax has escaped assessment for that year	 nor could it be said that he	 as a consequence of information in his possession	 had reasons to believe that the income chargeable to tax has escaped assessment for that year. We are not satisfied that the Income tax Officer had any material before him which could satisfy the requirements of either clause (a) or clause (b) of section 147. Therefore he could not have issued a notice under section 148". Reference to the names of Narayansingh Nandalal	 D. K. Naraindas	 Bhagwandas Srichand	 etc.	 in the report of the Income tax Officer to the Commissioner of Income tax in the instant case does not stand on a better footing than the reference to the three names in the report made by the Income tax Officer in the case of Chuugamal Rajpal. We would	 therefore	 hold that the second ground mentioned by the Income tax Officer	 i.e.	 reference to the names of Narayansingh Nandalal	 D. K. Naraindas	 Bhagwandas Srichand	 etc.	 could not have led to the formation of the belief that the income of the respondent assessee chargeable to tax had escaped assessment for that year because of the failure or omission of the assessee to disclose fully and truly all material facts. All the three learned Judges of the High Court	 in our opinion	 were justified in excluding the second ground from consideration. We may now deal with the first ground mentioned in the report of the Income tax Officer to the Commissioner of Income tax. This ground relates to Mohansingh Kanayalal	 against whose name there was an entry about the payment of Rs. 74 Annas 3 as interest in the books of the assessee	 having made a confession that he was doing only name lending. There is nothing to show that the above confession related to a loan to the assessee and not to someone else	 much less to the loan of Rs. 2	500 which was shown to have been advanced by that person to the assessee respondent. There is also no indication as to when that confession was made and whether it relates to the period from April 1	 1957 to March 31	 1958 which is the subject matter of the assessment sought to be reopened. The report was made on February 13	 1967. In the absence of the date of the alleged confession	 it would not be unreasonable to assume that the confession was made a few weeks or months before the report. To infer from that confession that it relates to the period from April 1	 1957 to March 965 31	 1958 and that it pertains to the loan shown to have been advanced to the assessee	 in our opinion	 would be rather far fetched. As stated earlier	 the reasons for the formation of the belief must have a rational connection with or relevant bearing on the formation of the belief. Rational connection postulates that there must be a direct nexus or live link between the material coming to the notice of the Income tax Officer and the formation of his belief that there has been escapement of the income of the assessee from assessment in the particular year because of his failure to disclose fully and truly all material facts. It is no doubt true that the court cannot go into the sufficiency or adequacy of the material and substitute its own opinion for that of the Income tax Officer on the point as to whether action should be initiated for reopening assessment. At the same time we have to bear in mind that it is not any and every material	 howsoever vague and indefinite or distant	 remote and far fetched	 which would warrant the formation of the belief relating to escapement of the income of the assessee from assessment. The fact that the words "definite information" which were there in section 34 of the Act of 1922 at one time before its amendment in 1948 are not there in section 147 of the Act of 1961 would not lead to the conclusion that action cannot be taken for reopening assessment even if the information is wholly vague	 indefinite	 far fetched and remote. The reason for the formation of the belief must be held in good faith and should not be a mere pretence. The powers of the Income tax Officer to reopen assessment though wide are not plenary. The words of the statute are "reason to believe" and not "reason to suspect". The reopening of the assessment after the lapse of many years is a serious matter. The Act	 no doubt	 contemplates the reopening of the assessment if grounds exist for believing that income of the assessee has escaped assessment. The underlying reason for that is that instances of concealed income or other income escaping assessment in a large number of cases come to the notice of the income tax authorities after the assessment has been completed. The provisions of the Act in this respect depart from the normal rule that there should be	 subject to right of appeal and revision	 finality about orders made in judicial and quasi judicial proceedings. It is	 therefore	 essential that before such action is taken the requirements of the law should be satisfied. The live link or close nexus which should be there between the material before the Income tax Officer in the present case and the belief which he was to form regarding the escapement of the income of the assessee from assessment because of the latter 's failure or omission to disclose fully and truly all material facts was missing in the case. In any event	 the link was too tenuous to provide a legally sound basis for reopening the assessment. The majority of the learned Judges in the High Court	 in our opinion	 were not in error in holding that the said material could not have led to the formation of the belief that the income of the assessee respondent had escaped assessment because of his failure or omission to disclose fully and truly all material facts. We would	 therefore	 uphold the view of the majority and dismiss the appeal with costs. P.B.R. Appeal dismissed.

In March 1967	 after obtaining the satisfaction of the Commissioner the appellant issued a notice under section 148 of the Income Tax Act	 1961 stating that he had reason to believe that the respondent 's income chargeable to tax for the assessment year 1958 59 had escaped assessment. The respondent replied that the I.T.O. had no competence or jurisdiction to reopen the assessment under section 147 of the Act on a mere change of opinion. Since there was no reply from the appellant	 the respondent moved the High Court for a writ. The High Court held that the conditions precedent for the exercise of jurisdiction by the Income Tax Officer were not fulfilled because the report submitted by the Income Tax Officer to the Commissioner under section 147(a) was defective. On appeal to this Court it was contended that the High Court was not right in holding that the Income Tax Officer 's report was defective. Dismissing the appeal	 ^ HELD: The High Court was right in holding that the material before the Income Tax Officer could not have led to the formation of the belief that the income of the assessee had escaped assessment because of his failure or omission to disclose fully and truly all material facts. [965H] 1. (a) The two conditions required to be satisfied before the Income Tax Officer issued a notice under section 148 of the Income Tax Act are that he must have reason to believe (i) that the income chargeable to tax had escaped assessment and (ii) that such income had escaped assessment by reason of the omission or failure on the part of assessee	 to disclose fully and truly material facts necessary for assessment for that year. Both these conditions must co exist in order to confer jurisdiction on the Income Tax Officer. Further the Income Tax Officer should record his reasons before initiating proceedings under section 148(2); before issuing the notice after the expiry of four years from the end of the relevant assessment year	 the Commissioner should be satisfied on the reasons recorded by the Income Tax Officer that it was a fit case for the issue of such notice. [962C D] (b) The duty cast upon the assessee does not extend beyond making a true and full disclosure of the primary facts. It is then for the Income Tax Officer to draw the correct inference from the primary facts. Where his inference subsequently appears to be erroneous	 mere change of opinion with regard to that inference would not justify initiation of action for reopening the assessment. [962F G] (c) The grounds or reasons leading to the formation of the belief under section 147(a) must have a material bearing on the question of escapement of income. Once there exist reasonable grounds for the Income Tax Officer to form the above belief	 that would be sufficient to clothe him with jurisdiction to issue notice. While the sufficiency of grounds which induce the Income Tax Officer to act is not justiciable	 it is open to the assessee to contend that the Income Tax Officer did not hold the belief that there was such non disclosure. The expression "reason to believe" does not mean a purely subjective satisfaction on the part of the Income Tax Officer. It is open to the Court to examine whether the reasons for the formation of the belief have a rational connection with or relevant bearing on the formation of the belief and are not extraneous or irrelevant for the purpose of the section. [962H] 957 Chhugamal Rajpal vs section P. Chaliha 	 Calcutta Discount Co. Ltd. vs Income Tax Officer	 41 I.T.R. 191 and section Narayanappa & Ors. vs Commissioner of Income Tax followed. In the instant case the grounds given by the Income Tax Officer for reopening the assessment were (i) that the three persons whose names were mentioned in the list of creditors	 were known name lenders and (ii) that another person shown as a creditor of the assessee had since confessed that he was doing only name lending. The first ground mentioned by the Income Tax Officer could not have led to the formation of the belief that the income of the respondent had escaped assessment for that year because of his failure or omission to disclose fully and truly all material facts. The High Court was justified in excluding that ground from consideration. [963D E] As regards the second ground there is nothing to show that the confession of another person related to a loan to the assessee and not to someone else. There is no indication as to when the confession was made and whether it related to the assessment year sought to be re opened. To infer from that confession that it related to the period of assessment and that it pertained to the loan shown to have been advanced to the assessee would be far fetched. [964G] 2(a). Rational connection postulates that there must be a direct nexus or live link between the material coming to the notice of the Income Tax Officer and the formation of his belief that there had been escapement of income of the assessee from assessment in the particular year. It is not any and every material	 howsoever vague and indefinite or distant	 remote and far fetched which would warrant the formation of the belief relating to escapement of the income of the assessee from assessment. The fact that the words "definite information" in section 34 of 1922 Act before its amendment in 1948 do not find a place in section 147 would not lead to the conclusion that action could now be taken for reopening assessment even if the information was wholly vague	 indefinite	 far fetched and remote. [965B D] (b) The powers of the Income Tax Officer to reopen assessment	 though wide	 are not plenary. The words are "reason to believe" and not "reason to suspect". The provisions of the Act depart from the normal rule that there should be finality about orders made in judicial and quasi judicial proceedings. It is	 therefore	 essential that before such action is taken the requirement of the law should be satisfied. [965E F] In the instant case the live link or close nexus between the material before the Income Tax Officer and the belief which he was to form regarding the escapement of the income was missing or at any rate the link was too tenuous to provide a legally sound basis for reopening the assessment.