Honouring 'Father of white revolution' Verghese Kurien, Google on Thursday made a doodle of him on his 94th birth anniversary.Also known as the "Milkman of India", Kurien made India the world's largest milk producer, an upliftment from being a milk-deficient country.Celebrating his 94th birth anniversary, Google showed Kurien on its homepage with a can of milk in his hand.He was appointed as founder-chairman of National Dairy Development Board (NDDB) in 1965 by the then prime minister Lal Bahadur Shastri.