Summarize the following court judgment. Appeal No. 1527 of 1974. Appeal by Special Leave from the Judgment & Order dated the 14th December	 1973 of the Delhi High Court in Civil Writ No. 1678 of 1967. F. section Nariman	 Addl. Gen. of India	 D. N. Mukherjee and R. N. Sahthey	 for the Appellants. N. A. Palkhiala	 Ravinder Narain	 J. B. Dadachanji	 O. C. Mathur	 K. J. John and K. R. Jhaveri	 for the Respondent. 419 The Judgment of the	 Court was delivered by Goswami	 J. This appeal is by special leave from the judgment of the Delhi High Court in a writ application there under article	 226 of the Constitution. The respondent manufactures various other items hot rolled finished steel products in rectangular cross section of thickness varying between 1.7 mm and 6.55 mm and width varying between 16.2 mm and 311.2 mm and rolled in coils which it supplies to the	 Indian Tube Company Limited at Jamshedpur for making tubes and also to others. This article is subjected to Central Excise Duty under the (hereinafter called the Act). The dispute between the respondent and the appellants is that while the former describes the said manufactured product as strip the appellants classify it as skelp. This difference in classifying the product differently results in fiscal misfortune to the respondent since skelp is subjected to a higher Central Excise Duty than strip. It may be stated that during the period from April 24	 1962 to February 28	 1964	 the respondent described its product as skelp and it was subjected then to a lower rate of	duty From February 19	 1964	 the respondent claimed that the aforesaid product be classified as strip since there. had been a levy of higher duty for skelp. The Assistant Collector	 Central Excise	 Jamshedpur	 who is the primary taxing authority	 the Collector of Central Excise	 Patna	 in appeal	 and the Central Government in revision rejected the contention of the respondent by successive orders	 each authority upon its own test of the definition of the product as skelp. That led to the successful writ application of the respondent in the High Court resulting in this appeal. In the forefront of his argument the learned Additional Solicitor General for the appellants relying upon two decisions of this Court	 namely	 The Collector of Customs	 Madras vs K. Ganga Setty(1) and V. V. Iyer of Bombay vs Jasjit Singh	 Collector of Customs and Another	(2) submitted that "it is primarily for the taxing authorities to determine the heads or entry under which any particular commodity fell; but that if in doing so	 these authorities adopted a construction which no reasonable person could adopt i.e.	 if the construction was preverse then it was a case in which the Court was competent to interfere. In other worlds	 if there were two constructions which an entry could reasonably bear	 and	 one of them which was in favour of Revenue was adopted	 the Court has no jurisdiction to interfere merely because the other interpretation favourable to the subject appeals to the Court as the better one to adopt '. On the other hand with equal emphasis Mr. Palkhivala for the respondent submitted that an assessment without the application of an identifiable test is nothing but perverse and arbitrary. He submits that in the present case there was no identifiable test before the taxing authorities by which the (1) ; (2) 420 product of the	 respondent could be held to be skelp and not strip subjecting the respondent to a heavier duty. According to the learned counsel there is no difference. between sklep and strip	 the two items being interchangeable. It may be	 noted for our purpose that under section 3 of the Act Central excise Duties are leviable on all excisable goods which are produced or manufactured in India at the rates set out in the First Schedule. Item No. 26AA in that Schedule relates to iron and steel products and mentions in sub item (iii) therein flats	 skelp and strips showing the rate of duty in the third column. Under rule 8 of the Central Excise Rules	 1944	 made under section 37 of the Act	 the Central Government may from time to time by notification in the official gazette exempt	 subject to such conditions as may be specified in the notification	 any excisable goods from whole or any part of the duty leviable on such goods. In exercise of the power under this rule the Central Government has made such exemptions in the rates of duty as have made it higher on skelp than on strip. Before we proceed further we may notice how the various Excise authorities dealt with the matter at different.stages. The first order is that of the Assistant Collector of Central Excise	 Jamshedpur	 which was on June 17	 1964. According to him "skelp is the name used in reference to a plate of wrought iron or steel used for making pipe or tubing by rolling the skelp into shape and lap welding or brevetting 	edges together and strip is a term used to describe a flat rolled product of smaller cross section than sheet or bar." He accordingly adopted the definition given in Marymen 's Dictionary of Metallurgy. The order of the Collector of Central Excise in appeal made on October 24/29	 1964	 shows that the authority noted the definition of strip as follows : "Hot or cold rolled finished steel product in rectangular cross section of thickness below 5 mm and of width below 800 mm and supplied	 in straight length". This definition is substantially in. conformity with the one given by the Indian Standards Institution (ISI). The appellate authority held that "since the products have not satisfied the above specifications	 they have been correctly	 classified as 'skelp ' by. the Assistant Collec tor. Then comes the order in revision of the Central Government of August 18	 1967. Inter alia it was held that "the product does have bevel edge	 .; peculiar to skelp and not found in strips. Under the circumstances	 there is no doubt whatever that the product in question is correctly classified as skelp". From the above three orders it is clear that the authorities were not at all certain about a uniform definition of 'skelp ' distinguishing it from 'strip. Extensive arguments were advanced at the bar with regard to the definitions of there two words. We may	 therefore	 look 421 at the various definitions to which our attention has been drawn. Since the appellants largely upon the definitions given by the Indian Standards Institution	 "an expert body"	 we will first note these definitions. The ISI 's definitions of strip and skelp as given in IS 1956 1962 (amended upto July 1968) are as follows Upto 1965 the ISI gave	 no description of strip. It had defined skelp in 1962 as follows: Skelp. "Hot rolled narrow strip with rolled (square	 slightly round or beveled) edge. Strip . A hot or cold rolled flat product	 rolled in rectangular cross section of thickness 10 mm and below and supplied with mill	 trimmed or sheared edge. (a) Narrow strip strip (other than hoop) of width below 600 mm and supplied in straight length or in coil form. (b) Wide Strip Strip of width 600 mm above and supplied in coil form only. " Upto 1965 the ISI gave no description of strip. It had defined skelp in 1962 as follows "Hot rolled. strip with square or slightly beveled edges	 used for making welded tubes". In 1968 the ISI 's definition of skelp stands as follows "Hot rolled narrow strip with rolled (square	 slightly round or beveled edge. 		 Strip was defined by the ISI for the first time in 1965 as follows: "Coiled Strip A hot or cold rolled flat product	 rolled in rectangular cross section and supplied in coil form. Strip A hot or cold rolled flat product	 rolled in rectangular cross section thickness below 5 mm and of width below 600mm and supplied in straight lengths". The ISI 's definition of strip given in 1968 is as follows "A hot or cold rolled flat product	 rolled in rectangular cross section of thickness 10 mm and below and supplied with mill	 trimmed or sheared edges. (a) Narrow strip Strip (other than hoop) of width below 600 mm and supplied in straight length or in coil form. (b) Wide strip Strip of width 600 mm and above and supplied in coil form only". Annexure 'J ' submitted by the respondent along 'with its rejoinder affidavit in the High Court at page 101 of the record	 gives various 422 definitions of skelp taken. from various dictionaries and treatises such as Hornor J. G. Dictionary of Terms	 page 323	 year 1952; Brandt D.J.C. Manufacture of Iron & Steel	 pages 318 and 319	 year 1953; Henderson J.C. Metallurgical Dictionary	 page 192	 year 1953; Backert A.O.L. A.B.C. of Iron & Steel	 page 1912	 year 1925 5th edition; Chamber 's Technical Dictionary	 year 1967. Similarly definition of strip is also given from these Dictionaries and books. It is also pointed out that there is no category of skelp mentioned in Brussels Nomenclature. British Standards 2094	 Part 4; 1954	 defines skelp as follows : "Hot rolled strip with square or slightly bevelled edges used for making welded tubes". Chamber 's Technical Dictionary Revised Edition (Reprinted 1954) defines skelp as follows "Skelp (P. 775) Mild steel strip from which tubes are made by drawing through a bell at welding temperature	 to produce lap welded or butt welded tubes". We may not add to the list but are satisfied that there are a large number of definitions out of which one can be picked up to satisfy the definition of skelp according to some authority and another definition to fit in with the concept of strip according to another authority Since the duties on strip and skelp are not the same	 it is absolutely necessary to define the word skelp so that there can be no doubt or confusion in the mind of either of the taxing authority or of the tax payer with regard to the tax liability qua skelp as opposed to strip. Since	 however. there is no statutory definition of this controversial item different tests have naturally been resorted to by the different authorities and the same variation is discernible even in the affidavits of the appellants submitted before the High Court. The short question	 therefore	 that arises for consideration is whether in the above background the High Court was right in interfering with the orders under article 226 of the Constitution. It is not for the High Court nor for this Court to come to a conclusion on facts as to whether the product can truly come under the description of skelp. That undoubtedly would require some evidence be taken at the level of the taxing authority provided	 however	 there is an identifiable	 uniform and determinate test by which skelp can be properly distinguished from strip. In the mass of documents filed before us and the extensive arguments addressed at the bar with regard to the definitions 'culled from various dictionaries	 handbooks and authorities	 we are not at all surprised that the three authorities came to the same conclusion by depending upon their own chosen tests. A particular type	 of strip may according to certain definitions. be skelp and according to others not Skelp. however	 cannot be permitted in a fiscal legislation which by all standards should adopt a clear definition of an excisable item which is incapable of giving rise to a confounding contro 423 versy as in this case unless the	 matter is beyond doubt in view of the popular meaning	 or meaning ascribed to the term in commercial parlance. In absence of any clear criterion to determine what is skelp. and not strip	 no useful purpose would be served by even remanding	 the matter to the Excise authorities for a decision after taking necessary evidence. It is only when a taxing law provides for a clear and unequivocal test for determination as to whether a particular product would fall under strip of skelp it may be possible for the authorities. to address itself to the evidence submitted by the parties in order to come to a decision on the basis of the test. This is	 however	 not possible in this ' case in view of the fact that there is no identifiable standard. The best way is to define the product for the purpose of excise duty in approximate terms demarcating clearly the distinction between. the two terms. The absence of any identifiable standard would	 therefore	 naturally give rise	 to the scope for arbitrary assessment at the hands of different authorities. Whether this has happened in this case	 as. ' complained by the respondent citing the instance of the Hindustan Steel Company	 Rourkela	 it is not necessary for us to pursue in this		 appeal. We are	 therefore	 unable to hold that the High Court has. gone wrong in granting the reliefs prayed for. The appellants strenuously emphasized upon the test relied upon in the Revisional order as to skelp having bevelled edges which	 according to them	 is peculiar to skelp and not to strip. But this does not bear scrutiny as on the counter affidavit of the Union of India in the High Court at page 57 of this record it shows that "as regards tested Hot rolled Strips the edges are never looked into	 they can be bevelled	 square or have Mill edge" (emphasis added). This is an admission of the appellants that strips may also have bevelled edges. The two decisions relied upon by the appellants do not come to their aid in this case since there is no identifiable standard or test to determine clearly which product can be skelp and not strip. In Ganga Setty 's case (supra) the controversy arose with regard to whether "feed oats" fell within item 42 (fodder) or within item 32 (grain) of parti cular circular. Dealing with the matter this Court observed as follows: ". any particular species of grain cannot be excluded merely because it is capable of being used as cattle or horse feeds. The decision of the Customs authorities	 therefore	 this Court held could not be characterized as Perverse or mala fide calling for interference. Similarly following Ganga Setty 's case (supra) in Jasjit Singh 's case (supra) the conclusion and findings of the Customs authorities were accepted a reasonable. In both the above cases there were definite tests by which the particular article could be held to fall under one item and not under the other and the construction of the authorities 424 with regard to the scope of the particular entries was	 therefore	 held to be reasonable and not calling for interference by the court. The 	question that arises in the instant case is of a completely different nature as pointed out above there being no identifiable test reasonably capable 	of distinguishing skelp from strip. In the result the appeal fails and is dismissed with costs. P.H.P. Appeal dismissed.

The respondent manufactures hot rolled finished steel products in rectangular cross section	 of thickness varying between 16.2 mm and 311.2 mm in coils (hereinafter a referred to as the Product) product as Strip whereas the appellant classifies it as a skelp. to higher excise duty than Strip. The Assistant Collector the product as Skelp. On appeal to the Collector of and rolled The respondent describes the Sklip is subject Central Excise treated Central Excise	 he confirmed it and in revision the Central Government also approved. The respondent filed a Writ Petition in the High Court. The High Court accepted the contention of the respondent. On appeal by Special Leave the appellant contended before this Court : (i) That it is primarily for the Taxing Authorities to determine the head or nature under which any particular commodity fell. (ii) The Court can interfere with the decision only if it is perverse. if there were two constructions possible and if the Taxing Authority accepts one of them the Court cannot interfere. The respondent submitted '. (i) Assessment without application of an identifiable test is perverse and arbitrary. (ii) In the present case. there was no iden tifiable test before the Taxing Authorities. There is no difference between Skelp and Strip. Dismissing the appeal	 Held : There are large number of definitions out of which one can be picked up to satisfy the definition of Skelp according to some. authority and another definition to fit in with the concept of strip according to another authority. Since there is no statutory definition for Skelp and Strip	 different tests have been resorted to by the different authorities. The question arises whether the High Court was right in interfering with the orders under article 226 of the: Constitution. It is not for this Court to come to the conclusion on facts. The absence of any identifiable standard naturally gives rise to the scope for arbitrary assessment at the hands of different authorities. It is not possible to hold that: the High Court has gone wrong in granting the reliefs prayed for. [422D F; 423C]