NATION Operation Flood: Transforming India from a milk deficient nation into world’s largest milk producer, all you must know Operation Flood, which was started in 1970, has assisted dairy farmers in managing their own development and taking ownership of the resources they produce. A National Milk Grid connects customers in more than 700 towns and cities with milk farmers across India, minimising seasonal and regional price differences while ensuring that the producer consistently receives fair market rates in a transparent manner.