A List of Important Indian Rivers
a.    Himalayan Rivers: Indus, Ganges, and Brahmaputra
b.    Interstate rivers falling in the Bay of Bengal: Subarnarekha, Brahmani, Mahanadi, Vamsadhara, Nagavati, Godavari, Krishna, Penneru, Korthalaiyaar, Paalar, Ponnaiyaar, and Kaveri
c.    Interstate rivers falling in the Arabian sea: Sabarmati, Mahe, Narmada, Tapti, Purna, Mandavi, Upplayaar, Chiria, Chandragiri, Kariangode, Kuppam, Valapatam, Chaliyar, Bharatapuzha, Chalakudi River
d.    Desert Rivers: Ghagar, Saraswati, Luni
e.    Other rivers falling in the Bay of Bengal: Burbabalang, Baitarni, Rishikulya, Sharada, Yeleru, Gundalakamma, Musi, Paleru, Muneru, Kunlenu, Swarnamukhi, Vellar, Vaiga, Chundar, Avaipar, Thamraparni
f.    Other rivers falling in the Arabian sea: Bhadar, Satrunji, Dhadar, Ambika, Vaitarna, Ulhas, Savitri, Kalinadi, Gangavati, Sharaavti, Netravati, Manjeswaram river, Mogral, Chittaripuzha, Nileswaram nadi, Kavvayipuzha, Pervampayaru, Mayyazhipuzha, Kuttiyadipuzha, Korapuzha, Kallayipuzha, Kadalundipuzha, Thirurpuzham, Keecheripuzha, Puzhaykalaaru, Karuvannurpuzha, Periyar, Muvattupuzhayaru, Meenachilaru, Manimalyaru, Pampanadi, Achchankovilaru, Pallichalaru, Kalladayaru, Iththikarayaru, Ayirupuzha, Vamanapuram Aru, Mamam Aru, Karamanayaru, Neyyar
g.    Small river flowing into foreign countries: Karnaphuli, Kaladan, Imphal, Tiksu.