Section 3(ca) in The Central Industrial Security Force (Amendment and Validation) Act, 1999
(ca)"industrial establishment" means an industrial undertaking or a company as defined under section 3 of the Companies Act, 1956 (1 of 1956) or a firm registered under section 59 of the Indian Partnership Act, 1932 (9 of 1932) which is engaged in any industry, or in any trade, business or service;
