Agartala, Jul 4 (IANS): Three militants of a banned separatist outfit have surrendered to the Indian security forces in Tripura after a crackdown on their training camp in Bangladesh, police said here Wednesday.

The three top leaders of the National Liberation Front of Tripura (NLFT) - Kashirai Reang, Debadanta Reang and Brikhu Reang - surrendered to the para-military Assam Rifles at Khedachara in northern part of the state late Tuesday.

The guerrillas surrendered an AK-56 rifle and some China-made arms and ammunition.

"The Bangladesh security forces flushed out the insurgents from their camps in Chittagong Hill tracks of that country. They crossed over to Tripura before surrendering," a police official said.

So far, around 85 militants of the banned NLFT and All Tripura Tiger Force (ATTF) have surrendered with arms this year.

Demanding a sovereign status for Tripura, the ATTF and NLFT have set up their bases in Bangladesh and are supported by other separatist outfits in the northeast.