बिहार में तराई मिट्टी की प्रमुख फसल है - The main crop of Terai soil in Bihar is - Bihar Me Tarai Mitti Ki Pramukh Fasal Hai Bihar Gk in hindi, Land and Soil Tobacco , Dalhan , Patsun question answers in hindi pdf Dalhan , Tilhan , Gehun questions in hindi, Know About Dhan , Gehun , Ganna , Dalhan Bihar Gk online test Bihar Gk notes in hindi quiz book Ganna , Dhan , Patsun