Four Indian fishermen from Rameswaram have been taken into custody of Sri Lankan Navy near Katchatheevu islands last night, India Today reported.The fishermen ventured into the sea after a day long strike held in Rameswaram. After the alleged shooting of the Indian fishermen by Indian Coast guard, Rameswaram fishermen had gone on a strike for the last few days. They have been taken into custody under the charges of crossing into Sri Lankan territory and practising illegal fishing. The fishermen have now been taken to Karai Nagar port in Sri Lanka and will be assembled in front of their magistrate tomorrow. They raised concern about their safety and security.The Indian fishermen have been facing a terrible period venturing out in the sea with being arrested by the Sri Lankan Navy frequently.