Nandini milk quality

Recently noticing nandini milk quality has went down. Fat percentage does not seem to justify the quality. Before same milk used to get more cream after refrigeration of boiled milk, but now a days very less cream. Used to make decent amount of ghee before with subham gold. Recently ordered santthrupthi yellow one with 6% fat and got only spoon of cream from 1 ltr whereas same 6% packet amul gold gave more cream as compared. Has anyone else felt the same?