The Council of Ministers of the Republic of India is the collective decision-making body of the Government of India, consisting of a group of ministers headed by the Prime Minister.
There are three categories of ministers, in descending order of rank:
The Cabinet of India, also known as the Union Cabinet, is the collective decision-making body of the Government of India, consists of the Prime Minister and the cabinet ministers. The Cabinet is the ultimate decision-making body of the government.
Hence we could say that the cabinet is a subset of the council of ministers.