The Coast Guard said their ship ‘Arnvesh’ apprehended the two Sri Lankan fishing boats Manoj and Kalanaputha-03 during surveillance four miles inside Indian waters.
Both boats had five crew members each.
The Sri Lankan boats were around 50 miles southeast of Nagapattinam in Tamil Nadu.
“The boats were escorted to Karaikal and were handed over to the Coastal Security Group,” the Coast Guard said.
A day earlier, a 21-year-old fisherman from Tamil Nadu was shot dead in Sri Lankan waters on Tuesday, but Colombo insisted the Sri Lankan Navy was not involved in the snooting.
Six fishermen from Thangachimadam in Ramanathapuram district were fishing near the Katchatheevu islet in the narrow sea dividing the two countries when they were fired at on Monday night, Indian officials said.
One fisherman, K. Britjo, was killed, and another was injured. The injured fisherman has been admitted in a hospital in Tamil Nadu. The others escaped without injuries.
Colombo has promised a thorough probe into the attack.