In bad news for security forces, Bodo insurgent group NDFB-S is believed to have aligned with UNLFW, an umbrella organisation of terror groups in the north-east, responsible for the recent ambush in Manipur that killed 18 soldiers.
The militants accosted Prasanta Kumar, shot him, tortured him and then dumped his body at Tangla area.
The tripartite agreement was signed by Assam Chief Minister Sarbananda Sonowal, top leadership of the four factions of the NDFB, ABSU, Joint Secretary in the Home Ministry Satyendra Garg and Assam Chief Secretary Kumar Sanjay Krishna in presence of Union Home Minister Amit Shah.