बिहार में गंगा का दक्षिणी भाग कितने क्षेत्रफल पर विस्तृत है ? - On how much area is the southern part of the Ganges spread in Bihar? - Bihar Me Ganga Ka Dakshinni Bhag Kitne Shetrafal Par Vistrit Hai ? Bihar Gk in hindi, Geographical Structure 37 , 183 Warg Kilometer question answers in hindi pdf 33 , 670 Warg Kilometer questions in hindi, Know About 33 , 183 Warg Kilometer Bihar Gk online test Bihar Gk notes in hindi quiz book 19 , 170 Warg Kilometer