Three policemen were killed in the ambush of the team of the state legislature's committee, an official statement of the state home department said.
The militants are - Thanglawmvel, Rinsang and Lalrohuol all of them from Manipur and Lalchawimawia and Jacob, both from Mizoram.
One of the leaders of the Hmar militants who ambushed the team of the assembly committee, Malsawmkima, who deserted the state armed police, was gunned down in an encounter with the police on May 8 inside Manipur.
State Home Minister R. Lalzirliana said there could never be peace negotiations with the HPC (D) unless the latter returned all the weapons snatched from the policemen in the March 28 ambush.