Thiruvanthapuram: The water level of the Mullaperiyar dam reservoir, which is located in Kerala though its waters serve Tamil Nadu also, touched 141.3 feet Tuesday.
The rise is due to the reduction in the amount of water taken by Tamil Nadu. The water level was 141.2 feet on Monday.
It touched the 140 feet-mark on Saturday due to heavy rain.
Kerala and Tamil Nadu have been at loggerheads over the dam, built under an 1886 accord between the then Maharaja of Travancore and the erstwhile British Raj.
The water level has breached the 140 feet-mark only on two earlier occasions. In 1992 it touched 143.8 feet and in 1995 it was 141.60 feet.
The hullaballoo over the matter came to a standstill when in May this year the Supreme Court struck down a Kerala assembly act restricting the water level at 136 feet. It also gave the safety standards at the dam a clean chit.
After the verdict came, the Kerala assembly, for the fourth time, passed a unanimous resolution that the central government should act as a mediator for building a new dam at Mullaperiyar.