"In the just concluded central committee meeting, we have resolved to strengthen our organizational base and maintain a distance from our former ally Congress," party general secretary Jagadhish Debbarma told reporters.
The party is considering forging an alliance with BJP in future to oust the ruling CPI(M) in the next Assembly elections to be held in 2018.
The INPT would go it alone for the Tripura Tribal Areas Autonomous District Council (TTAADC) polls and in the by-election for Manu constituency.
"Manu is a ST reserved constituency. We will not tie up with any political party and contest it alone," Jagadhish Debbarma said.
Manu seat became vacant after CPI(M) MLA Jitendra Chowdhury resigned following his victory in the Lok Sabha polls from East Tripura constituency.
INPT has no presence in the Assembly or in the TTAADC.
