लाल मिट्टी बिहार के किस भाग में मिलती है ? - In which part of Bihar red soil is found? - Laal Mitti Bihar Ke Kis Bhag Me Milti Hai ? Bihar Gk in hindi, Land and Soil Nawada Jile Me question answers in hindi pdf Ganga Nadi Ke Dakshinni Bhag Me questions in hindi, Know About Son Nadi Ke Dakshinni Bhag Me Bihar Gk online test Bihar Gk notes in hindi quiz book Pashchimi Champaran Jile Me