GMS supplied membrane plants for recovery of 6 APA form mother liquor. More than a dozen plants were provided in India and abroad. Benefits enjoyed by end users were more than 200 cr. till June 2000. As a recognition Indian Institute of Chemical Engineer’s gave away NOCIL award to Dr. B. Chakravorty (Managing Director). Similarly many other applications have been developed in aqueous & solvent media for recovery of bulk drug from mother liquor.