National Milk Day in India: National Milk Day is celebrated on Dr Verghese Kurien's birth anniversary every year since 2014. Dr Verghese Kurien is known as the "Father of the White Revolution", as he was the brains behind 'Operation Flood', the world's largest dairy development programme.
source https://www.jagranjosh.com/current-affairs/national-milk-day-2021-why-is-the-day-celebrated-who-is-dr-verghese-kurien-father-of-white-revolution-1637905402-1