NEW DELHI, April 22 -- In the aftermath of the deadly serial bombings which ravaged Sri Lanka on Easter Sunday, the Indian Coast Guard has been placed on high alert along the Indian maritime border to prevent any attempt by those behind the Lanka attacks to escape.

Rameswaram on the Indian coast is barely 55 kms from Talaimannar in Sri Lanka and the sea could be a possible escape route for some of the perpetrators of the deadly attacks.

Earlier on Monday, the Sri Lankan authorities named the National Thowheed Jamath (NTJ), a local Islamist outfit, as being responsible for the series of bombings which killed at least 290 people across the island nation.

Reports indicate that there may be some cells of the NTJ present in parts of southern ...