Section 12(1)(b) in The Jute Companies (Nationalisation) Act, 1980
(b)where the undertakings of the jute companies are vested in the Jute Manufactures Corporation, an employee of the said Corporation, on and from the date of such vesting, and shall hold office or service under the Central Government or the Jute Manufactures Corporation, as the case may be, with the same rights and privileges as to pension, gratuity and other matters as would have been admissible to him if there had been no such vesting and shall continue to do so unless and until his employment under the Central Government or the Jute Manufactures Corporation, as the case may be, is duly terminated or until his remuneration and other conditions of service are duly altered by the Central Government or the Jute Manufactures Corporation, as the case may be.