supply of feed materials for 39 nos captive elephants supply of feed materials for 39 nos captive elephants under jaldapara wildlife division , rice ( unpolished, unbroken, unbolied, local varieties to be supplied in 50 kg bag ) , massur dal ( unpolished, unbroken, bigger grains ) , jaggery ( hard lumps of 200-300 grams, sulphur free, chemicals free, dark brown colour, should not taste salty ) , common salt-non-iodized ( white colour, free from lumps, moisturecontent to be less ) , black salt ( indian natural black salt, bigger chunks, not powdered, red-orange colour ) , mustard oil ( cooking grade oil, 1 ltr. package )