Based on specific input from Army intelligence, a joint operation was launched by Army and Police near Batasipur area of the district last night, a defence spokesperson said.
The entire area was cordoned off by security forces and after search two suspected NDFB(S) cadres were nabbed.
The apprehended militants have been identified as Nijam Basumatry and Rajib Basumatry.
Two grenades and ammunition of AK 47 rifle were seized from their possession.
The NDFB(S) had launched an attack on adivasis in Sonitpur and Kokrajhar districts resulting in retaliatory violence and police firing which altogether claimed 81 lives.