The total area of the Garo Hills Autonomous District Council is 10,102 sq km having a population of 1,394,362 as of 2011.

The Executive Committee remains in Office as long as they enjoy the majority support of Members of the Council.

The other duties of the Council in session are to legislate and enact laws and regulations on such powers as conferred by the Sixth Schedule.

Bills on laws and regulations passed by the Council in session are sent to the Governor of the State for his assent or approval.

Under the above paragraphs, the ADCs are empowered to constitute Courts for trials of cases between parties belonging to Scheduled Tribe Communities.