Section 18(2)(a) in The Customs, Central Excise Duties and Service Tax Drawback Rules, 1995
(a)every application made by a manufacturer or exporter for the determination or revisions of the amount or rate of drawback in respect of goods exported before the commencement of these rules but not disposed of before such commencement shall be disposed of in accordance with the provisions of the 1971 Rules as if these rules had not been made;