National Cooperative Dairy Federation of India will buy 11,150 tn of de-oiled rice bran and 2,850 tn rice polish through an online auction on Sep 27. The commodities, used as cattle feed, will be bought on behalf of Karnataka Milk Federation. The National Cooperative Dairy Federation of India, which has nearly 200 dairy cooperatives as members, has developed an online trading platform to purchase feed stock and sell dairy products.