Unidentified militants hurled powerful grenades at two private houses including that of a senior Manipur government official but it failed to explode, official sources said on Thursday.
The militants lobbed grenade at the house of superintendent of Chandel district Hospital, Khagembam Radheshyam at Lilong Chajing area in Thoubal district on Wednesday night.
The police later defused it.
Family sources said some militants who claimed to be members of Kangleipak Communist Party-Khaba Metei (KCP-KM) faction had demanded payment of Rs 10 lakhs from the official few weeks ago.
No individual or group has so far claimed responsibility for hurling the grenade.
In another incident, the militants also lobbed a powerful grenade at the house of Upa-Adhyaksa of Thoubal Jila Parishad, Phuritsabam Jiten last night at his house at Thoubal area, sources said adding that monetary demand from Jiten could be one of the reasons for the attack.