The bomb exploded at around 4.30 pm near the Super market at Singjamei area here in Imphal West district, they said.
There was no report of any casualty, the police said adding that no group or individual has claimed responsibility for the bomb explosion.
Five persons, including two women, were injured in a bomb explosion last evening in the heart of the Imphal city, hours after the final phase of the Assembly poll in Manipur concluded.