Incorporated in 1981 as a joint sector company with GIIC Ltd. and Chemosyn (P) Ltd. Commenced production in August, 1985 by producing Erythromycin and Erythromycin salts and formulations. The Company was taken over during June 1991 by Pharmaceutical Business Group (India) Ltd. (PBG); a unique consortium of five competing drug Companies – Themis Medicare Ltd., Kopran Ltd., Anant & Co., Cadila Health Care Ltd. (Zydus) and Lyka Labs Ltd.. The Company entered into Technical & Financial collaboration with Yuhan Corporation, South Korea. With Yuhan’s know-how, GTBL became India’s first Company to start commercial production of Anti-tuberculosis drug Rifampicin.