The company held its Initial public offering (IPO) in 1977.[14] The issue was over-subscribed by seven times.[15] In 1979, a textiles company Sidhpur Mills was amalgamated with the company.[16] In 1980, the company expanded its polyester yarn business by setting up a Polyester Filament Yarn Plant in Patalganga, Raigad, Maharashtra with financial and technical collaboration with E. I. du Pont de Nemours & Co., U.S.[13]