Explanation to Sec. 80-IB(9) inserted by FA 2009 w.e.f. 1.4.2000 is ultra vires to Article 14 of Constitution of India

Issue- Whether the insertion of sub clause (iv) in Section 80-IB(9) of the Income Tax Act, 1961, by Finance (No.2) Act, 2009 conferring the benefit of the deduction under this Section to undertakings engaged in commercial production of natural gas in blocks licensed under VIIIth round of bidding provided such commercial production commenced on or after 1.4.2009 results in denial of the benefit of deduction under 80-IB(9) to undertakings engaged in commercial production of natural gas under contracts entered into prior to NELP VIII on an interpretation thereof that the term “mineral oil&#...