Members in Lok Sabha today expressed concern over Sri Lanka detaining fishermen from Tamil Nadu and China building dams on the Brahmaputra river on their side which could hamper water availability in the North East.
During Zero Hour, he said as many as 37 fishermen from Tamil Nadu have been detained and 53 fishing boats seized.
Last month, eight Indian fishermen were detained by Sri Lanka for allegedly trespassing into their territory.
Urging the central government to continue to take steps for the release of fishermen, Elumalai urged Prime Minister Narendra Modi to "bring it (Katchatheevu) into our territory".
He also called for deepening the fishing area on the Indian coast.
In October, Tamil Nadu Chief Minister J Jayalalithaa had written to the Prime Minister raising concern over detention of fishermen by Sri Lanka and had said ceding Katchatheevu islet was the root cause of the problem.
Alleging that China was constructing dams on the Brahmaputra river on their side, Congress member from Arunachal Pradesh Ninong Ering said there should be river water sharing agreement between India and China. Otherwise, the water situation would become bad for the North East region in the future, he added.
"There should be bilateral talks (between India and China) and have some arrangement for river water sharing," Ering said.