Summarize the following court judgment. Appeal Nos. 245 251/72. From the Judgment and Order dated 21 9 1970 of the Assam and Nagaland High Court in Civil Rules Nos. 105	 106 and 123 to 127/ 66. A.K. Sen	 D.N. Mukherjee and N.R. Choudhary for the Appellant. Purshottam Chatterjee and S.N. Choudhary for the respond ents. The Judgment of the Court was delivered by KHANNA	 J. The short question which arises for consid eration in these seven appeals filed on certificate against the judgment of Assam and Nagaland High Court is the scope and validity of the following part of rule 23 of the Assam Agricultural Income tax Rules	 1939 (hereinafter referred to as the rules) framed under section 50 of the Assam Agricul tural Income tax Act (Assam Act 9 of 1939) (hereinafter referred to as the Act): "Where an order apportioning the liability to the tax on the basis of partition has not been passed in respect of a Hindu family hitherto assessed as undivided or joint	 such family shall be deemed for the purposes of the Act	 to continue to be a Hindu undivided or joint family. " The High Court held that the facts of this case were covered by the above quoted rule. The High Court also repelled the challenge to the vires o{ the rule. The appeals arise out of seven petitions filed under articles 226 and 227 of the Constitution of India by the appellant which were dismissed by a common judgment. The matter relates to assessment years 1946 47	 1947 48	 1948 49	 1949 50	 1950 51	 1951 52 and 1955 56. Each writ peti tion related to one of these years. We may set out the facts relating to the assessment year 1946 47 as it is the common case of the parties that the decision about the writ petition relating to that year would govern the other writ petitions also. The appellant Sashi Prasad Barooah was the Karta of a Hindu undivided family styled as S.P. Barooah & Others. The family was governed by Dayabhaga school of Hindu law and consisted of three members. The family owned certain tea estates and carried on the business of tea plantation. It was assessed under the Act in respect of its income derived from manufacture and sale of tea. The case of the appellant is that there was a partition of the family on January 1	 1945 and as a result of that partition	 some of the tea estates fell to the share of the appellant and he became exclusive owner thereof from the date of the partition. A general notice dated April 3	 1946 was published in the Assam Gazette and local newspapers in terms o	f sub section (1) of section 19 of the Act calling upon persons whose agricultural income exceeded 647 the limits of taxable income to furnish returns within the specified time. On March 24	 1947 the appellant addressed a letter to the Agricultural Income tax Officer praying for extension of ' time for submission of the return. Another letter dated May 10	 1947 was addressed by the appellant to the Agricultural Income tax Officer stating that he was trying to expedite the submission of the return. On February 15	 1951 the Agricultural Income tax Officer addressed a communication to the appellant asking him to file the return by March 14	 1951. The appellant by letter dated March 16	 1951 informed the said officer that he would meet him at Shillong. In his letter dated July 21	 1951 the appellant informed the Agricultural Income tax Officer that he would file his return as soon as some matters were settled. On March 25	 1955 the appellant addressed another letter to the Agricultural Income tax Officer stat ing that he had not received the relevant assessment orders made by the Income tax Officer (the income tax officer under the Indian Income tax Act	 1922) relating to the assessment years 1946 47 onwards. On July 1959 the following two notices were sent by the Agricultural Income tax Officer to the appellant: "I am to inform you that following the dissolution of family business of Sashi Prasad Barua and Others in the year 1945	 you are liable to furnish a Return of agricultur al incomes including those from the Tea Es tates under your ownership from the assessment year 1946 47. Please also note that the Returns along with certified copies of Central Income tax Assessment should reach this office on or before 15 8 59. In default	 you will be liable for summary assessment." "Whereas I have reason to believe that your total agricultural income from sources chargeable to agricultural income tax in the year ending the 31st March	 1947 to 1959 (a) has wholly escaped assessment; (b) I therefore propose (i) to assess the said income that has escaped assessment. I hereupon require you to deliver to me not later than 15 8 59 or within 30 days of the receipt of this notice	 a Return in the attached form of your total agricultural income during the previous year ending the 31st March	 1946 to 1958. " Accompanying the two notices sent by the Agricultural Income tax Officer was also a notice under section 19(2) and section 30 of the Act. The appellant failed to submit a return or to furnish certified copies of the Central assess ment orders. The Agricultural Income tax Officer as per order dated June 22	 1961 assessed the total agricultural income of the appellant for the year 1946 47 to be 648 Rs. 1	45	994. An amount of Rs. 19	321.44 was held to be recoverable from the appellant. The appellant filed an appeal against that order but the same was dismissed by the Assistant Commissioner of Taxes on December 27	 1962. Revision filed by the appellant was dismissed by the Commis sioner of Taxes as per order dated September 28	 1964. Certificate of public demand showing an amount of Rs. 3	74	087	89 as due from the appellant for the seven years in question was then issued by the Agricultural Income tax Officer. Proclamation for the sale of the property of the appellant was thereafter issued for the recovery of the amount due from the appellant. The appellant thereupon filed	 as mentioned earlier	 seven writ petitions. Prayer made in the writ petitions was to quash the impugned assess ment orders dated June 22	 1961	 the notices of demand dated July 4	 1961 and the proclamation of sale dated December 31	 1964. Form one of the notices 	addressed by the taxation authorities to the appellant as well as from the return filed on their behalf	 it would appear that the taxation authorities were not averse in the event of partition among the members of the Hindu undivided family	 to assess the appellant in his individual capacity in respect of the agricultural income arising from those tea estates which had fallen to his share. Such a course	 it seems	 was also not acceptable to the appellant. His stand at the same time was that no assessment could be made in the name of Hindu undivided family as according to him the same had been disrupted as a result of partition. The appellant thus wanted a complete imunity from payment of agricultural income tax during the years in question even though agricul tural income had arisen from tea estates. Although a number of grounds were taken in the writ petitions	 at the hearing before the High Court only two grounds were pressed on behalf of the appellant. The first ground was that after the dissolution of the Hindu undivided family	 no assessment order could be made under the Act in respect of such disrupted Hindu undivided family. The second submission advanced on behalf of the appellant was that in case it be held that the matter was covered by rule 23 reproduced above	 in that event the said rule was ultra vires the powers of the State Government to frame rules under the Act. The High Court	 as already mentioned	 decided on both the points in favour of the revenue and against the appellant. In appeal before us Mr. Sen on behalf of the appellant has contended that the Hindu undivided family of which the appellant was the Karta was disrupted on January 1	 1945. It is urged	 as was done before the High Court	 that after the disruption of that family	 it could not be assessed under the Act. Rule 23 reproduced above	 according to the learned counsel	 is not attracted in the present case. In case	 however	 it be held that the said rule applies to the present case	 the State Government	 Mr. Sen submits	 had no power to make such a rule. The above contentions have been controverted by Mr. Chatterjee on behalf of the respondents. The learned coun sel has also emphasised the fact that in none of the commu nications sent by the appellant 649 mentioned above	 there was any reference to partition of the Hindu undivided family. After giving the matter our consideration	 we are of the opinion that the two contentions advanced by Mr. Sen on behalf of the appellant are not well founded. It is conse quently not necessary for us to go into the question as to what is the effect of the omission of the appellant to refer to the partition in the communications sent by him to the Agricultural Income tax Officer. It may be apposite at this stage to refer to the materi al provisions	 as they stood at the relevant time	 of the Act which provides for the imposition of tax on agricultural income arising from lands situated in Assam. According to the definition of "person" as given in section 2(m) of the Act	 person includes an undivided or joint Hindu family. Section 3 is the charging section. According to this sec tion	 agricultural income tax at the rate or rates specified in the annual Assam Finance Acts subject to the provisions of section 6 shall be charged for each financial year in accordance with	 and subject to	 the provisions of this Act on the total agricultural income of the previous year of every individual	 Hindu undivided or joint family	 company	 firm and other association of individuals. Section 19 of the Act deals with the return of income and reads as under: "19. (1) The Agricultural Income tax Officer shall	 on or before the first day of May or for the year commencing 1st April	 1939 any later day notified by the Government in each year	 give notice by publication in the press and otherwise in the manner prescribed by rules	 requiring every person whose agri cultural income exceeds the limit of taxable income prescribed in section 6 to furnish	 within such period not being less than thirty days as may be specified in the notice	 a return	 in the prescribed form and verified in the prescribed manner	 setting forth (along with such other particulars as may be required by the notice) his total agricultural income during the previous year: Provided that the Agricultural Income tax Officer may in his discretion extend the date for the delivery of the return in the case of any person or class of persons; (2) In the case of any person whose total agricultural income is	 in the opinion of the Agricultural Income tax Officer	 of such amount as to render such person liable to payment of agricultural income tax for any financial year the Agricultural Income tax Officer may serve in that financial year a notice in the prescribed form upon him requir ing him to furnish	 within the prescribed period	 a return in the prescribed manner setting forth his total agricultural income during the previous year. (3) If any person has not furnished a return within the time allowed by or under sub section (1 )	 or sub section 650 (2) or	 having furnished a return under either of those subsections	 discovers any omission or wrong statement therein	 he may furnish a return or a revised return	 as the case may be	 at any time before the assessment is made	 and any return so made shall be deemed to be made in due time under this section. " Section 20 provides for the making of an assessment order. Section 30 deals with income escaping assessment	 and its material part reads as under: "If for any reason any agricultural income chargeable to agricultural income tax has escaped assessment for any financial year	 or has been assessed at too low a rate	 the Agricultural Income tax Officer may	 at any time within three years of the end of that financial year	 serve on the person liable to pay agricultural income tax on such agricul tural income or	 in the case of a company on the prin cipal officer thereof	 a notice containing all or any of the requirements which may be included in a notice under sub section (2) of section 19	 and may proceed to assess or reassess such income	 and the provi sions of this Act shall	 so far as may be	 apply accordingly as if the notice were a notice issued under that sub section :" Section 5C) empowers the State Government to make rules. The material part of that sec tion reads as under ': "50. (1) The Provincial Government may	 subject to previous publication	 make rules for carrying out the purposes of this Act	 and such rules may be made for the whole of the Province or such part or parts thereof as may be specified. (2) In particular	 and without prejudice to the generality of the foregoing power	 such rules may (a) . (b) . (c) . (d) . (e) . (f) . (g) . (h) . (i) . (j) prescribe the manner in which the tax shall be payable where the assessment is made on the agricultural income of a Hindu undivided or joint family and a partition of the. property of such 651 family has been effected after the date of such assessment; (k) . (l) . (m) . We have set out above the relevant part of rule 23. The rule clearly states that where an order apportioning the liability to the tax on the basis of partition has not been passed in respect of a Hindu family hitherto assessed as undivided or joint	 such family shall be deemed for the purposes of the Act	 to continue to be a Hindu undivided or joint family. It would	 therefore	 follow that unless an order apportioning the liability to the tax on the basis of partition iS passed in respect of a Hindu undivided family which was hitherto assessed as such undivided family	 the said family shall be deemed for the purpose of the Act to continue to be a Hindu undivided family. Admittedly no order apportioning the liability to the tax on the basis of the alleged partition has been passed in respect of the Hindu undivided family of which the appellant was the Karta. As such	 the aforesaid family shall continue to be treated	 for the purposes of the Act	 as Hindu undivided family. We are unable to subscribe to the submission of Mr. Sen that the above rule would apply only in those cases where the Hindu undivided family has already been assessed under the Act and the only thing which remains is the recovery of the tax in pursuance of the said assessment order. Such cases	 in our view	 are covered by other part of rule 23. We are	 however	 not concerned with that part. So far as the part of rule 23 which has been reproduced above is concerned	 its language is clear and unambiguous. The language clearly warrants the conclusion that in the absence of an order apportioning the liability to the tax on the basis of parti tion in respect of a Hindu undivided family hitherto assessed as undivided or joint	 such family shall be deemed for the purposes of the Act to continue to be a Hindu undi vided family. As regards the second contention	 Mr. Sen submits that the power which has been conferred by clause (i) of sub section (2) of section 50 of the Act is to make rules pre scribing the manner in which the tax shall be payable when the assessment is made on agricultural income of a Hindu undivided or joint family and a partition of the property of such family has been effected after the date of such assessment. It is urged that apart from that	 the State Government has no power to make a rule for assessment of a Hindu undivided family after a partition takes place in such family. This contention is devoid of force as we are of the opinion that the State Government was competent to make the part of rule 23 reproduced above in exercise of the powers conferred by sub section (1) of section 50. According to that sub section	 the State Government may subject to previ ous publication make rules for carrying out the purposes of this Act. It has not been disputed before uS that there was previous publication of the rules in question. The question is whether the 652 part of rule 23 reproduced above can be said to have been made for carrying out the purposes of the Act. The answer to this question	 in our opinion	 should be in the affirma tive. What the rule contemplates is that unless an order was made on the basis of the alleged partition of a Hindu undivided family	 such family shall be deemed for the pur poses of the Act to continue to be Hindu undivided family. The rule thus relates to the working of the Act. Section 3 of the Act is the charging section and creates liability for tax in respect of the total agricultural income of every individual	 Hindu undivided family	 firm and other associa tion of persons. Such a liability having already been created by the above provision	 rule 23 reproduced earlier deals with the question as to who should be the person as defined in the Act who should be assessed in respect of the agricultural income arising from property in respect of which Hindu undivided family was assessed hitherto. The rule provides that such family shall continue to be deemed as Hindu undivided family for the purposes of the Act unless an order is made on the basis of the partition amongst the members of the family. This is a matter of detail to carry out the purposes of the Act and the State Government	 in our opinion	 was well within its competence to make the impugned rule in exercise of its powers under sub section (1) of section 50 of the Act. There is also nothing novel in a Hindu undivided family being taxed as such in spite of a claim of its disruption unless an order on the basis of the partition is made by the taxing authorities. section (1) of section 171 of the Income tax Act 1961 provides that a Hindu undivided family hitherto assessed as undivided shall be deemed for the purposes of the Act to continue to be a Hindu undivided family	 except where and in so far as a finding of partition has been given under that section in respect of the Hindu undivided family. The fact that	 unlike the Income tax Act	 there is no statutory provision in the Act with which we are concerned and the matter is dealt with by the rules framed under the Act would not make any material differ ence. The rules would be as much binding as would be the statutory provision in this respect. The only requirement is that the rules should be validly made. in exercise of the powers conferred by the Act. So far as this aspect is concerned	 we have already held above that the rule in question was validly made as it was within the competence of the State Government to make such rule. The proposition is well settled that it is not unconsti tutional for the legislature to leave it to the executive to determine details relating to the working of taxation laws	 such as the selection of persons on whom the tax is to be levied the rates at which it is to be charged in respect of different classes of goods and the like [see Pt. Banarsi Das vs State of Madhya Pradesh(1)]. In that case this Court dealt with the provisions of the Central Provinces and Berar Sales Tax Act	 1947. The said Act provided for exemption from taxation in res (1) 653 pect of the supply of certain material. Power was also conferred upon the State Government to amend such exemption by notification. This Court upheld the validity of that notification. We may also refer to the case of Powell vs Appollo Candle Company Limited(1) which dealt with section 133 of the Customs Regulation Act of 1879 of New South Wales. That section conferred a power on the Governor to impose. tax on certain articles of import. While repelling the challenge to the constitutional validity of that provision	 the Privy Council observed: "It is argued that the tax in question has been imposed by the Governor and not by the Legislature who alone had power to impose it. But the duties levied under the Order in Council are really levied by the authority of the Act under which the order is issued. the Legislature has not parted with its perfect control over the Governor	 and has the power	 of course	 at any moment	 of withdrawing or altering the power which they have entrusted to him. In these circumstances	 their Lord ships are of opinion that the judgment of the Supreme Court was wrong in declaring section 133 of the Customs Regulations Act of ]879 to be beyond the power of the Legislature. " In Syed Mohamed & Co. vs The State of Madras(2)	 the question was as to the vires of rules 4 and 16 framed under the Madras General Sales Tax Act. Section 5(vi) of that Act had left it to the rulemaking authority to determine at which single point in the series of sales by successive dealers the tax should be levied	 and pursuant thereto	 rules 4 and 16 had provided that it was the purchaser who was liable to pay the tax in respect of sales of hides and skins. The validity of the rules was attacked on the ground that it was only the legislature that was competent to decide who 'shall be taxed and that the determination of that question by the rule making authorities was altra vires. The Madras High Court rejected this contention	 and held on a review of the authorities that the delegation of authority under section 5(vi) was within permissible consti tutional Limits. Powell 's case as well as the case of Syed Mohamed were referred to with approval by this Court in the case of Pt. Banarsi Das. The above decisions clearly lend support for the conclusion arrived at by the High Court in the judgment under appeal that the State Government was within its compe tence to make rule 23 reproduced above. We	 therefore	 uphold the judgment of the High Court and dismiss the appeals with costs. One set of fee P.B.R. Appeals dismissed. (1) (2) 3 S.T.C. 367.

Rule 23 of the Assam Agricultural Income tax Rules	 1939 provides that where an order apportioning the liability to the tax on the basis of partition has not been passed in respect of a Hindu undivided family hitherto. assessed as undivided or joint	 such family shall be deemed	 to continue to be a Hindu undivided or joint family. The assessee was the Karta of a Hindu undivided family	 which was assessed to agricultural income tax in respect of income derived from the manufacture and sale of tea. The assessee contended before the Agricultural Income tax Officer that	 since there was disruption of the Hindu undi vided family	 no agricultural income tax was payable exen though agricultural income had arisen from tea estates. This plea was rejected. His petition under article 226 of the Constitution impugning the validity of r. 23 had been dis missed by the High Court. In appeal to this Court it was contended that (i) after the dissolution of the family no assessment order could be made under r. 23 in respect of such disrupted Hindu Undi vided family (ii) the State Government had no power to make a rule for the assessment of a Hindu undivided family after a partition took place in the family. Dismissing the appeals	 HELD: (1) The language of r. 23 clearly warrants the conclusion that in the absence of an order apportioning the liability to tax on the basis of partition in respect of a Hindu undivided family hitherto assessed as undivided or joint	 such family shall 	be deemed	 for the purpose of the Act to continue to be a Hindu Undivided family. No order apportioning the liability to	 tax on ' the basis of the alleged partition having been passed	 the family shall continue be treated as a Hindu undivided family. [651 C F] 2(a) The liability for tax having been created by the charging section	 the rule deals with the question as to who should be the person that should be assessed to tax. This is a matter of detail to carry out the purposes of the and the State Government was well within its competence to make the rule in exercise of its rule making power. [652 C D] (b) The fact that. unlike the Income tax Act	 there is no statutory provision in the Act and the matter is dealt with by the rules	 would not make any material difference. The rules would be as much binding as would be statutory provision in t	his respect. [652 E F] (c) It is well settled that it is not unconstitutional for the legislature to leave it to the executive to deter mine the details relating to the working of taxation laws. such as selection of persons on whom the tax is to be levied. the rate at which it is to be charged in respect of different classes of goods and the like. [652 G H] Pt. Banarsi Das vs State of Madhya Pradesh [1959] S.C.R. 427	 followed. Powell vs Appollo Candle Company Limited [1885] 10 A.C. 282 and Syed Mobgreed & Co. vs The State of Madras 3 S.T.C. 367	 referred to. 646