Section 7(3)(c) in The National Company Limited (Acquisition And Transfer Of Undertakings) Act, 1980
(c)no liability incurred by the Company before the appointed day, for the contravention of any provision of law for the time being in force, shall be enforceable against the Central Government, or, where the undertakings of the Company vest in an existing, or a new, Government company, against such Government company.