Rao said the area was in the dam premises and that he would submit his report to the tribunal before the end of April 2015.
Tamil Nadu government officials said maps of the dam drawn by their Kerala counterparts showed that the proposed area was in the catchment area. Allocating parking area was against the Mullaiperiyar dam agreement, they said.
Besides the Supreme Court also had directed the Surveyor general to conduct the survey of the parking area, the officials said.