Hanse's body was found buried in the remote Tarapung area under Chokihola police station of the district.
He was shot dead on May two in a camp inside the forest allegedly by an unidentified member of the militant outfit, the sources said.
Hanse's body was later buried inside the jungle and police launched a search operation in the area to trace him after locals informed them about the incident.
Earlier, the outfit's Chairman Nilip Ingti was killed in a joint operation by the army and police on April 19 last.
