"We have requested the External Affairs Ministry to rescue our fishermen. What we understood is that the ministry is already in touch with Diego Garcia authorities in this regard," Fisheries Minister J Mercykutty Amma told reporters here.
In view of such incidents, the government today decided to strictly enforce colour-coding of sea-bound fishing boats.
Of the 19 fishermen detained in the British island, 12 were from Tamil Nadu's Kanyakumari district, six from Kerala and one from Assam. The Keralite fishermen were those hailing from coastal hamlets Poovar and Poonthura near here.
The colour-code provisions would be implemented during the upcoming trawling ban period, she said.
"It will not only ensure the safety of our fishermen but also check the presence of foreign trawlers in our territorial waters," she said.