Ganga River
Punpun River
Sone River
Koshi River
Saryu (Ghaghra) River
Gandak River
Budhi Gandak River
Bagmati River
Kamla-Balan River
Bhutahi-Balan River
Mahananda River
Karmnasha River
Uttari Koyal River
Panchane River
Falgu River (Niranjana River or Leelajan River)
Adhwara
Madar River
Dardha River in Jehanabad District
Dhanauti River in East Champaran District
Chandan River
Sakri River
Ban Ganga River
Harhar River
Mohana River
Morhar River in Gaya District
Tilave River in East Champaran District
Kiul River
Badua River
Belhama River
Billasi River
Chir River
Kao River
Gangi River
Baya River in Samastipur District
Koa River
Bhena River
Mahi River
Kareh River in Samastipur District
Tiyar River in East Champaran District
Bangari River in East Champaran District
Pasah River in East Champaran District
Gad River in East Champaran District
Lal Bakeya River in East Champaran District
Bakara River in Bhagalpur District
Noona River in Bhagalpur District
Tati River in Shiekhpura District
Hadohar River in Shiekhpura District
Majwada River in West Champaran District
