Mandovi River, known as Mhadai in Western Ghats of Goa and Karnataka, has three sources: the Degao, the Nanevadichi Nhõi (nhõi means river in Konkani) and Gavali; the last two sources go dry in summer season. The main origin of the river, in the form of a spring, even during Summer season, is at Bavtyacho Dongor hills near Degao village in Khanapur Taluka of Belgaum Dist in Karnataka State.
The three streams confluence at the Kabnali village whereafter it is known as Mhadai, which has an easterly flow initially, then flows north and finally turns to the west on entering Goa. Mhadai River enters Goa between Krisnapur (Karnataka) and Kadval (Goa) villages. The tributaries of the Mhadai are the Nersa Nala, the Chapoli and Kapoli nala, the Bail Nala, the Volo Panshiro ( Karnataka), the Suko Panshiro, the Harparo, the Nanodyachi Nhõi, the Vellsachi Nhõi, the Valpoichi Nhõi, the Ghadghadyachi Nhõi, the Valvanti/ Volvot, the Divcholchi Nhõi, the Asnoddchi Nhõi, the Khandeaparchi Nhõi, the Mhapxechi Nhõi, Xinkerchi Nhõi etc. It is the longest River of Goa with a reported length of 105 km.
- owing into the Bay of Bengal: Brahmaputra, Yamuna, Ganga (with its main tributaries Ramganga, Kali or Sharda, Gomti, Yamuna, Chambal, Betwa, Ken, Tons, Ghaghara, Gandaki, Burhi Gandak, Koshi, Mahananda, Tamsa, Son, Bagmati), Meghna, Mahanadi, Godavari, Krishna (and their main tributaries)
- flowing into the Arabian Sea:Narmada, Tapi, Sabarmati, Purna
The remaining rivers are as follows:
Rivers of India
The peninsular Rivers in India include the Mahanadi, Godavari, Krishna, Cauvery, Narmada, and Tapti or Tapi. Together they drain a significant portion of rural India. These rivers carry both religious and cultural significances in the lives of Indianpeople.