A BSF jawan was injured when an improvised explosive device (IED) exploded at Moirangpurel, around 20 km from Imphal on Thursday, police said.
The incident occurred at around 4.30pm when jawans of the Border Security Force (BSF) were on a patrol on foot.
The injured jawan has been taken to Regional Institute of Medical Sciences in Imphal, the police said.
The blast occurred a day after chief of army staff General Dalbir Singh Suhag visited Manipur and instructed the personnel to carry out operations to capture insurgents responsible for gunning down six Assam Rifles personnel during an ambush on May 22 in Chandel district along Indo-Myanmar border.
The area has been cordoned off and search operations are on in the vicinity, police said.
No outfit has claimed responsibility for the blast.