बिहार में घाघरा नदी गंगा में कहाँ मिलती है ? - Where does the Ghaghra river join the Ganges in Bihar? - Bihar Me Ghaghra Nadi Ganga Me Kahan Milti Hai ? Bihar Gk in hindi, Drainage System Chhapra Ke Nikat question answers in hindi pdf Patana Ke Nikat questions in hindi, Know About Saran Ke Nikat Bihar Gk online test Bihar Gk notes in hindi quiz book Munger Ke Nikat