Manthan is a 1976 Hindi film made by Shyam Benegal, based on a story written jointly by Dr. Verghese Kurien and director Shyam Benegal. It is set amidst the backdrop of the White Revolution of India which started in 1970, ushering an era of plenty, from a measly amount of milk production and distribution. Aside from the great measurable success that this project was, it also demonstrated the power of "collective might".The film went on to win the 1977 National Film Award for Best Feature Film in Hindi and National Film Award for Best Screenplay for Vijay Tendulkar, and was also Indian submission for the Academy Award for Best Foreign Language Film for 1976.Wikipedia