A soldier was killed and three harmed after a powerful Improvised Explosive Blast (IED) blast hit an Army vehicle in Digboi in Tinsukia district of Assam, an authority said.
The harmed fighters were taken to a hospital where one of them died, a senior authority said.
The blast hit the armed force escort as the encounter is underway between the security drives and suspected activists in Tinsukia district.
The incident occurred at around 5.30 am, in the Pengeri area, Defense public relations officer Lt. Col. Suneet Newton said.
On Wednesday, aggressors assaulted a van of the Pengeri tea estate killing one individual and harming two others.