Section 140(4) in The Central Goods and Services Tax Act, 2017
(4)A registered person, who was engaged in the manufacture of taxable as well as exempted goods under the Central Excise Act, 1944 or provision of taxable as well as exempted services under Chapter V of the Finance Act, 1994, but which are liable to tax under this Act, shall be entitled to take, in his electronic credit ledger,-(a)the amount of CENVAT credit carried forward in a return furnished under the existing law by him in accordance with the provisions of sub-section (1); and(b)the amount of CENVAT credit of eligible duties in respect of inputs held in stock and inputs contained in semi-finished or finished goods held in stock on the appointed day, relating to such exempted goods or services, in accordance with the provisions of sub-section (3).