The militants came in a two wheeler and hurled the bomb at the private house of Singh located at Lamlai area at 7.45 pm, the sources said adding that the bomb exploded but nobody was injured in the explosion.
Singh and his family members were not present the house at the time of the explosion as they stay in his official quarter at Imphal.
No individual or group has claimed responsibility, they said adding police forces have rushed to the spot.