The Chairman of the Chiefs of Staff Committee, was the head of the Indian Armed Forces, roughly based on the British Chiefs of Staff Committee. The senior-most Chief of Staff was appointed to serve as a Chairman until he retired. The last Chairman was the Chief of the Army Staff General Bipin Rawat. After its creation, Chief of Defence Staff (CDS) is the permanent chairman of the Chiefs of Staff Committee (CoSC). Earlier, the chairmanship of the CoSC was held in rotation by the senior-most service chief for short periods and the arrangement was found to be unsatisfactory.