STATE OF U.P. vs DEEPAK FERTILIZERS &PETROCHEM.CORPN.LTD.

The Supreme Court addressed the validity of notifications issued under the U.P. Trade Tax Act, specifically examining the exemption of potassium phosphatic fertilizers. The Court held that the notification dated 10th April 1995, which withdrew the exemption for NPK 23:23:0, could not be applied retrospectively, thus affirming the High Court's decision that the respondent's product should be included in the exemption list. The ruling emphasized the importance of fair administrative practices under Section 25 of the U.P. Trade Tax Act, 1948.