“ Dhudh ki nadiya wahe ja Koyal ku ku gaye Hey mare ghar angana na bhulo na” The folksy Gujarati song from the film Manthan in the lilting voice of Preeti Sagar touches your heart every time you hear it. So captivating was the song that dairy major Amul used it as its corporate tune and went back to the extraordinary genius who composed it - Vanraj Bhatia - time and again for more pieces. “The Manthan music gave a good identity to our co-operatives and is a signature tune of our campaigns,” says R S Sodhi, Managing Director of GCMMF, which owns brand Amul, describing how the versatile composer’s last work for the company was the chimes of the clock at IRMA, the rural management institute at Anand.