The bomb, suspected to be an Improvised Explosive Device (IED), exploded at the junction of H Mongjang village and Imphal-Moreh road, about 103 km from Imphal, at about 2.15 pm when an Assam Rifle patrol party was moving on foot.
Three jawans -- Subedar Sher Ram, and Riflemen Sachin and Basumatari -- were injured, police said.
All three were airlifted by an Air Force helicopter to the military hospital at Leimakhong.
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