Palar River

Palar (Tamil: பாலாறு, Kannada: ಪಾಲಾರ್ ನದಿ, Telugu: పాలార్ నది is a river of southern India. It rises in Nandi Hills, India in Kolar district of Karnataka state, and flows 93 kilometres (58 mi) in Karnataka, 33 kilometres (21 mi) in Andhra Pradesh and 222 kilometres (138 mi) in Tamil Nadu before its confluence into the Bay of Bengal at Vayalur about 100 kilometres (62 mi) south of Chennai. It flows as a Guptagamini (underground course) for a long distance only to emerge near Bethamangala town, from where, gathering water and speed, it flows eastward down the Deccan Plateau. The cities of Ramanaickenpet, Vaniyambadi, Ambur, Gudiyatham, Vellore, Melvisharam, Arcot, Walajapet (Anaicut), Kanchipuram, and Chingleput are located on banks of Palar River. Of all the total of seven tributaries, the chief tributary is Cheyyar River.

Controversial dam

Andhra Pradesh Government is constructing an irrigation dam across Palar at Ganeshpuram, near Kuppam, Andhra Pradesh which has caused agitation among the people of the five northern districts of Tamil Nadu, namely Vellore, Kancheepuram, Tiruvannamalai, Thiruvallur and Chennai benefited by the river. Tamil Nadu Chief Minister Jayalalitha voiced her opposition to this proposal and said "Palar is an inter-state river and was also one of the rivers mentioned in Schedule A annexed to the 1892 agreement which is in force as per Interstate River Water Disputes Act 1956. As per a clause of the agreement, the upstream state should not build any new dam or any structure to obstruct, divert, or store waters of the rivers without the consent of the downstream state".