Indian Standard and the FSSAI licenses granted to the petitionerassessee, which categorizes the product in question as namkeen. As per the Apex Court judgments of Parle Agro Pvt. Ltd. (supra) , Hindustan Lever Ltd. (supra) , and Muller & Phillips (India) Ltd. (supra) , reliance can and should be placed on relevant food laws to determine the classification of food products. 10.4. The Tax Board also arrived at the conclusion that the goods in question are snacks based on a mere reading of the ingredients. This conclusion of the Tax Board, solely on the basis of ingredient, is ex facie fallacious and bereft of any reasoning. It is also contrary to the Apex Court judgment of Frito Lays India (supra) and order of CESTAT New Delhi in Pepsi Foods Ltd. (supra) , which has been affirmed by the Apex Court. Though the said judgments pertains to Excise Law, the same can be relied upon to ascertain the basic characteristic of the goods in question. 11. The reliance placed upon judgment of this Court in the case of M/s Compuage Infocom Limited (supra) by learned counsel for the respondent-revenue, to contend that the subsequent Notification dated 14.07.2014 would reveal the intention of Legislature to place the goods in question in Schedule V, is also misplaced as the Notification dated 14.07.2014 substituted the Schedule V to the RVAT Act and that substitution was prospective and could not be given retrospective effect, as per Apex Court judgment of M/s L.R. Brothers Indo Flora Ltd. (supra) . Even otherwise, as per settled position of law, an amendment in revenue matters can be given retrospective application only when the same is beneficial to the assessee and