बिहार में घाघरा नदी किस स्थान पर गंगा में मिलती है ? - Where does the Ghaghra river join the Ganges in Bihar? - Bihar Me Ghaghra Nadi Kis Sthan Par Ganga Me Milti Hai ? Bihar Gk in hindi, Drainage System Bhojpur Ke Nikat question answers in hindi pdf Vaishali Ke Nikat questions in hindi, Know About Chhapra Ke Nikat Bihar Gk online test Bihar Gk notes in hindi quiz book Samastipur Ke Nikat