The five-judge Constitution Bench headed by Chief Justice R M Lodha on May 7 had passed the judgement striking down a law promulgated by Kerala government declaring Mullaperiyar dam as endangered and fixing the water level at 136 feet.
The apex court had also pulled up the Kerala government for enacting a law which overruled its verdict of 2006 by which it had declared the dam safe and allowed Tamil Nadu authorities to raise the water level.
"The error is due to erroneous assumption of the fact that the Federation of India was established and consequently, contracts of secretary of State devolved on Madras province under section 177," it said.
Mullaperiyar dam is a masonry dam and was constructed pursuant to the Periyar Lake Lease Agreement of October 29, 1886 across Periyar river. The construction continued for about eight years and was completed in 1895.