The Andhra Pradesh Government is constructing an
irrigation dam across the Palar river 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,
Chengalpattu,
Thiruvallur and
Chennai benefitted by the river. Tamil Nadu's former 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". The average rainfall in the entire Palar river basin is low. This river basin suffers from frequent droughts and there has been no full scale flow for the past 10 years. However, Karnataka and Tamil Nadu have mitigated the frequent recurrence of droughts by building numerous minor and medium irrigation tanks. This has improved the availability of water for surface as well as ground water irrigation. As per the wet land atlas of India., the manmade wet lands are covering extensive area (3% to 5%) in the districts of Karnataka and Tamil Nadu covering Palar river basin. Whereas the Palar basin in Andhra Pradesh is not well covered by wet lands which implies that the river water usage in Andhra Pradesh is not up to the mark compared to Karnataka and Tamil Nadu. In the year 1892 when the Palar waters agreement was made, Tamil Nadu and Andhra Pradesh were part of then Madras Presidency. The 1892 agreement on Palar river water sharing is applicable between Karnataka and Andhra Pradesh since the boundary line in Palar river basin between
Madras Presidency and
Mysore kingdom is now part of Karnataka and Andhra Pradesh states. ==Documentary==