Dairies say they must pay producers more to keep supplies coming. GCMMF, which markets Amul, said its member unions raised procurement prices by 4-5 per cent over the past year, and that a major portion of the latest increase will go back to producers to encourage higher output. The cooperative said 80 per cent of consumer revenue is returned to 36 lakh milk producers. Mother Dairy returns 75-80 per cent of its milk sales revenue to farmers and said higher procurement prices forced it to pass part of the cost on.