The fishermen held the demonstration in front of tahsildar office covering their mouth with black cloth, police said.
Sri Lankan Navy personnel had arrested 82 fishermen on June 7 after they allegedly entered the island nation waters.
Following the intervention of President Mahinda Rajapakse, the fishermen were ordered to be released by courts in Sri Lanka. However, their 17 boats had not been released.
Fishermen from Rameswaram, Pamban and Mandapam have been staying away from sea since June 9, protesting the arrest of the fishermen and the seizing of their boats.