Unidentified militants attacked the house of a Manipur government official by throwing grenade, official sources said on Monday.
Sources said the militants hurled the grenade at the house of Block Development Officer of Imphal West district K Rajendro (50) at Lamphel area in Imphal West district late last night but it failed to explode.
The police later defused the grenade, sources said adding that monetary demand from the official could be one of the reasons.
No individual or organisation have so far claimed responsibility for the grenade attack.
Sources said militants of various outfits have been attacking the houses of officials or rich people by throwing grenades or bombs for the past several months in connection with monetary demand.