नेपाल में गण्डक को किस नाम से पुकारते हैं ? - By what name is Gandak called in Nepal? - Nepal Me Gandak Ko Kis Naam Se Pukarte Hain ? Bihar Gk in hindi, Canals and Irrigation Gandak question answers in hindi pdf Sapt Gandaki questions in hindi, Know About Badi Gandak Bihar Gk online test Bihar Gk notes in hindi quiz book Chhoti Gandak