Summarize the following court judgment. it Petition (Civil) No. 611 of 1986. (Under Article 32 of the Constitution of India). H.K. Puri for the Petitioners. M.P. Jha for the Respondents. The Judgment of the Court was delivered by PG NO 380 KANIA	 J. This writ petition is filed under Article 32 of the Constitution of lndia by the West Bengal Hosiery Association and certain Hosiery manufacturers and dealers in the State of West Bengal against the State of Bihar and the Commissioner of Commercial Taxes cum Special Secretary	 Bihar praying for a direction to the Respondents to forebear from levying or imposing or collecting any sales tax on the sale of hosiery goods imported into the State of Bihar from other States for sale during the tenure of Circular No. So 934 dated 1st August	 1984	 exempting from such tax	 sales of hosiery goods manufactured or produced in the State of Bihar and to refund the amount of sales tax levied and collected on the sale of hosiery goods imported into the State of Bihar from other States in India from 1st August	 1984. The Petitioners have also prayed for a writ of mandamus commanding the Respondents to cancel	 withdraw or rescind Notification No. SO. 934 dated August 1	 1984 by which exemption was granted to hosiery industries of Bihar from the levy of sales tax as set out earlier and the Petitioners have also prayed that the Respondents should be directed to refrain from making any discrimination between hosiery goods imported into the State of Bihar and hosiery goods manufactured in the State of Bihar in the levy of Bihar Sales Tax. The writ petition can be very shortly disposed of because the point raised in the writ petition is directly covered by decisions of this Court. By a notification dated 30th September	 1983	 on and from October 1	 1983	 Bihar Sales Tax at the rate of 5 per cent ad valorem was imposed on all hosiery goods sold within the State of Bihar irrespective of the place whether the hosiery goods were manufactured. On August 1	 1984	 a Notification bearing No. SO 934 was issued whereby the hosiery goods manufactured by hosiery industries in Bihar were exempted from the levy of sales tax. The said Notification stated that it would remain valid for a period of five years. The reason given for this exemption was the grant of incentives to hosiery industries in Bihar. The contention raised before us by Mr. Sorabji	 learned Counsel for the Petitioners	 is that by reason of the said Notification all the sales of hosiery goods in Bihar manufactured by hosiery industries outside the State of Bihar are subjected to the levy of sales tax at the rate of 5 per cent whereas the sales of hosiery goods manufactured by hosiery industries in Bihar are exempted from such levy and thus the hosiery industries outside the State of Bihar are clearly discriminated against. It is submitted by learned Counsel that this discrimination violates the provisions of Article 301 of the Constitution of lndia. PG NO 381 The relevant Articles to consider in order to appreciate the contention of the Petitioners are Articles 301 & 304 of the Constitution of India. The said Articles run as follows: 301. Subject to the other provisions of this Part	 trade	 commerce and intercourse throughout the territory of lndia shall be free. Notwithstanding anything in article 301 or article 303	 the Legislature of a State may by law (a) impose on goods imported from other States or the Union territories any tax to which similar goods manufactured or produced in that State are subject	 so	 however	 as not to discriminate between goods so imported and goods so manufactured or produced; and (b) impose such reasonable restrictions on the freedom of trade	 commerce or intercourse with or within that State as may be required in the public interest: Provided that no Bill or amendment for the purposes of clause (b) shall be introduced or moved in the Legislature of a State without the previous sanction of the President. " A plain reading of these Articles would show that it is not open to any State to levy any tax on goods imported from other States or Union territories so as to discriminate between goods so imported and goods manufactured and produced in that State subject to the limitations contained in clause (b). In the present case	 clause (b) has no application whatsoever because the exemption granted to the sales of hosiery goods manufactured in the State of Bihar has not been granted by any law passed by the legislature of the State of Bihar but by a Notification. We find that the contention urged on behalf of the Petitioners has been accepted in several decisions of this Court. In H. Anraj etc. vs Government of Tamil Nadu etc. [1985] Supp. 3 S.C.R. 342 a Division Bench of this Court comprising Tulzapurkar and Sabyasachi Mukharji	 JJ.	 was called upon to consider whether an amendment made to the Tamil Nadu General Sales Tax Act	 1959 and the Orders and Notification issued thereunder whereby	 in effect	 exemption from the payment of sales tax was granted to lottery tickets issued by the PG NO 382 Government of Tamil Nadu but the lottery tickets issued by other Government and sold within the State of Tamil Nadu were subjected to sales tax	 was violative of Article 301 read with Article 304 of the Constitution. A similar challenge was also made to the validity of the West Bengal Taxation Laws (Second Amendment) Act	 1984 and Notification No. 1020 FT dated March 29	 1984 issued by the State of West Bengal. The Court took the view for the purposes of questions raised in that case lottery tickets could be regarded as "goods". The Court held that laws imposing taxes can amount to restrictions on trade	 commerce and intercourse	 if they hampered the free flow of trade and they are not what can be termed to be compensatory taxes on regulatory measures. It was held that the sales tax of the kind in question before the Division Bench could not be said to be a measure regulating any trade or a compensatory tax levied for the use of trading facilities. Sales tax which had the effect of discriminating between goods of one State and goods of another might affect the free flow of trade and would offend against Article 301 and would be valid only if it came within the terms of Article 304(a). The real question to be considered was whether the direct and immediate result of the impugned Notification was to impose an unfavourable and discriminatory tax burden on the imported goods which in that case were lottery tickets of other State when they were sold within the State of Tamil Nadu and the State of West Bengal as against indigenous goods and that this question had to be considered from the normal business or commercial point of view. If the question was so considered	 it could be seen that the impugned Notifications would have to be regarded as directly and immediately hampering the free flow of trade	 commerce and intercourse. This view was taken after considering several decisions of this Court and following the decision of this Court in Firm A.T.B. Mehtab Majid and Co. vs State of Madras & Anr.	 [1963] Suppl. 2 S.C.R. 435. A similar view has been taken by a Division Bench of this Court comprising Ranganath Misra & M.M. Dutt	 JJ.	 in a judgment delivered as recently as January 12	 1988 in The Indian Cement & Ors. vs The State of Andhra Pradesh & Ors.	 ; where it has been observed (p. 759) as follows: "Variation of the rate of inter State sales tax does affect free trade and commerce and creates a local preference which is contrary to the scheme of Part Xlll of the Constitution. " In the present case	 a perusal of the Notifications referred to earlier show that prima facie a clear discrimination is made against hosiery goods manufactured PG NO 383 outside the State of Bihar and sold in the State of Bihar as the sales of such goods are subjected to the levy of sales tax at the rate of 5 per cent whereas the sales of similar goods manufactured by hosiery industries in the State of Bihar are exempted from sales tax. From a commercial or normal point of view	 such a discriminatory levy of sales tax is bound to affect the free flow of hosiery goods from outside States into the State of Bihar and would	 therefore	 amount to hampering the free flow of trade and commerce. The State of Bihar has not chosen to file any counter to the petition or to justify this discriminatory levy as a regulatory measure or a compensatory tax. The result is that the discrimination made must be regarded as violating the provisions of Article 301 read with Article 304(b) of the Constitution. This brings us to the question as to the relief to which the Petitioners are entitled. This Court in Weston Electroniks and Anr vs State of Gujarat & Ors.	 dealt with a situation like the one in the case before us. In that case the facts were that Section 7 of the Gujarat Sales Tax Act	 1969 provides for the levy of sales tax on the turnover of sales of goods specified in Part A Schedule II of the said Act. Entry 80 A of Part A of Schedule II specifies the rate of tax applicable to the turnover of television sets. That rate was 15 per percent originally and upto 1981; and the entry applied to all television sets	 whether manufactured and sold within the State of Gujarat or imported from outside the State. In 1981	 while the rate of tax on electronic goods entering the State for sale therein was maintained at 15 per cent	 the rate in respect of locally manufactured goods was reduced to 6 per cent. By a Notification dated March 29	 1986	 issued under sub section (2) of Section 49 of the said Act which empowered the State Government to exempt in part r whole	 in public interest	 any specified class of sales from the payment of the whole or any part of the tax payable under that Act	 in 1986	 the rate of sales tax in respect of television sets imported from outside the State was reduced from 15 per cent to 10 per cent and for goods manufactured within the State	 the rate of sales tax was reduced to 1 per cent. The Petitioners before this Court submitted that the Notification specifying a lower rate for local manufactures should be quashed. It was held that the rate prescribed under Section 7 of the Gujarat Sales Tax Act	 1969 is the rate applied generally and it represents the normal standard of levy. The lower rate applied to local manufacturers represents a departure from or exception to the general norm. In such a case the Court should	 when granting relief	 choose the alternative which would give effect to the statutory intention; and	 following this principle	 it was PG NO 384 held that the impugned Notifications reserving a lower rate of tax for local manufacturers must be quashed. In the case before us we find that the general rate of sates tax on hosiery goods was 5 per cent and it was the exemption for locally manufactured hosiery goods	 granted by the said Notification No. SO 934 dated August 1	 1984	 which constituted the departure. It is	 therefore	 really this Notification which is discriminatory and which must be struck down. We find that the said Notification No. SO 934 dated August 1	 1984 is void for the reasons set out earlier and we quash the same. We realise that quashing of this Notification on the ground that it was void ab initio might lead to undue hardship for the dealers in the State of Bihar who might have sold locally manufactured hosiery goods without taking into consideration any amount on account of the liability to sales tax in view of the exemption granted by the said Notification dated August 1	 1984. In order to obviate this hardship	 we direct that the arrears of sales tax which would become payable by the dealers in the State of Bihar in respect of sales of local hosiery goods made during the period when the said Notification was in operation should not be collected. Rule is made absolute to the extent aforesaid. However	 taking into account the facts and circumstances of the case	 we direct that there shall be no order as to costs.

The Bihar Government imposed sale tax at 5 ad valorem on all hosiery goods sold within the State irrespective of the place of manufacture of such goods	 effective from October 1. However	 by virtue of a notification dated August 1	1984 	 it exempted from such levy	 the hosiery goods manufactured by hosiery industries in Bihar. This exemption was sought to be given as an incentive to hosiery industries in Bihar. The petitioners have approached his Court by way of a writ petition	 contending that there has been discrimination between hosiery goods imported into the State of Bihar and hosiery goods manufactured in that State in the levy of sales tax. They prayed for the issue of a writ of mandamus to the Respondents to rescind the notification dated August 1	 1984	 and for a direction to the Respondents to forebear from levying or collecting sales tax on sale of hosiery goods imported into the State of Bihar from other States	 and for refund of the sales tax already levied and collected. The petitioners contended that such discrimination violated article 301 of the Constitution of India	 and that such discrimination could never be made by a notification. Allowing the writ petition and quashing the notification in question	 this Court HELD: 1.1. A perusal of the Notifications would show that prima facie a clear discrimination is made against hosiery goods manufactured outside the State of Bihar and sold in the State of Bihar PG NO 378 PG NO 379 as the sales of such goods are subjected to the levy of sales tax at the rate of 5 per cent whereas the sales of similar goods manufactured by hosiery industries in the State of Bihar are exempted from sales tax. From a commercial or normal point of view	 such a discriminatory levy of sales tax is bound to affect the free flow of hosiery goods from outside States into the State of Bihar and would	 therefore	 amount to hampering the free flow of trade and commerce. The State of Bihar did not file any counter to the petition to justify this discriminatory levy as a regulatory measure or as a compensatory tax. The result is that the discrimination made must be regarded as violating the provisions of Article 301 read with Article 304(b) of the Constitution. [382H; 383A C] 1.2. The general rate of sales tax on hosiery goods was 5 per cent and it was the exemption for locally manufactured hosiery goods	 granted by the said Notification dated August 1	 1984 which constituted the departure. It is	 therefore	 really this Notification which is discriminatory and which must be struck down. [384A	B] H. Anraj etc. vs Government of Tamil Nadu etc. [1985] Suppl. 3 SCR 342; Firm A.T.B. Mehtab & Co. vs State of Madras & Anr.	 [1963] Suppl. 2 SCR 435; The Indian Cement & Ors. vs The State of Andhra Pradesh & Ors.	 ; ; Weston Electroniks and Anr. vs State of Gujarat & Ors.	 	 referred to. [This Court directed that since there might be undue hardship to the dealers in the State of Bihar who might have sold locally manufactured goods without taking into consideration the liability to sales tax in view of the exemption granted by the notification dated August 1	 1984	 the arrears of sales tax payable by them should not be collected.]