The eviction carried out by forest and administrative officials early this week, an official communique said here today.
The Operation was led by Namsai DFO (divisional forest officer) Rini Riba, Chongkham EAC (extra assistant commissioner) O Lego while SDPO K Padu led the police team.
Officials had received a tip-off that some Chakmas had set up residence within the reserved forests.
While the team did locate 25 temporary camps and 4 dwelling huts, they were found to be deserted.
The team informed that its work was compounded by the fact that the encroached areas were highly inaccessible due to bad roads.
Orders for regular patrolling in the area has been issued, the communique added.