The Achik National Volunteer Council (ANVC) was formed in December 1995. ANVC, which was proscribed on November 16, 2000, aims to carve out a homeland called 'Achik Land' in the areas of Garo Hills. The proposed 'Achik Land' comprises the districts of Garo Hills in Meghalaya and a large chunk of Kamrup and Goalpara districts of Assam. The 'Garo majority' in these areas is used as the argument for this demand. ANVC differs from the other Garo separatist organisation, Garo National Council (GNC), which aims for a Garo state comprising only the three districts of the Garo hills.

Dilash R Marak is the chairman of ANVC. The outfit's commander-in-chief is Jerome Momin. Among its other leaders are general secretary Wanding R Marak, publicity secretary Artist Sengsrang Sangma, joint secretary Janggam Momin, and finance secretary Rickie Sangma. The outfit divides its area of operation into several zones and each zone is headed by a commander. The leadership maintains strict vigil on the activities of its cadres.

ANVC is active in the Garo Hills and in certain parts of the West Khasi Hills. It maintains its headquarters at Cheram in the Garo hills area. The outfit was reportedly formed with the assistance of the National Socialist Council of Nagalim – Isak-Muivah (NSCN-IM). However, it has severed its entire links with the Naga outfit as well as with the National Democratic Front of Boroland (NDFB). It now maintains links with the United Liberation Front of Asom (ULFA), especially after the latter wound up some of its camps in Bhutan and is in the process of relocating them in the Garo Hills. ANVC has some of its camps in Bangladesh.

On July 23, a ceasefire agreement was signed between the Government of India and ANVC for a period of six months. A seven member ANVC team, with the notable absence of chairman Dilash Marak and commander-in-chief Jerome Momin signed the agreement in New Delhi. A ceasefire monitoring cell has been set up at the Coal India Complex at Araimile in Tura. Two designated camps for housing the surrendered militants are being set up in the Garo Hills region.