The Hynniewtrep National Liberation Council's objective is to turn Meghalaya into an exclusive state for Khasi and Jaintia people,
free of Garo domination and influx of the Dkhars - outsiders.
Most of the HNLC cadres surrendered to the Indian military in 2007, including its chairman.
But some hard-line elements, led by Bobby Reagan Marwein, continue the fight in the hills and in Shillong.
The moderates want to discuss the future with the Meghalaya government.