Militants attacked the house of a Manipur government official in Imphal East district by hurling a powerful grenade, the police said on Monday.
The ultras lobbed the explosive at the residence of state forest department ranger Konsam Achouba at interior Pourabi Mayai Leikai village on Sunday but the grenade failed to explode.
Achouba and his family members were present at the time of the incident, they said, adding that no individual or group has claimed responsibility for the attack.
Family members of the official said a militant outfit had demanded a huge sum of money from the family about a month ago but they have not contacted the family after that.
In another incident, commandos attached to Thoubal district police in interior Manipur, arrested two insurgents of the banned People's Revolutionary Party of Kangleipak-Progressive (PREPAK-P) identified as sisters Ningombam Pramodini and Ningthoujam Manimacha from Sekmaijin area in Thoubal district on Sunday.
A 9mm pistol along with some rounds of ammuntion and 'letters demanding money from the public' were allegedly recovered from the possession of the two.