The Prime Minister wields the executive power. The Prime Minister is designated by legislators of the political party or coalition commanding a parliamentary majority. He or she is assisted by the Council of Ministers, or the cabinet, appointed by the Prime Minister. All ministers are sworn in by the President. The President then appoints subordinate ministers on the advice of the Prime Minister.

India's bicameral parliament consists of the upper house known as the Council of States, or Rajya Sabha and the lower house known as the House of the People, or Lok Sabha. The Rajya Sabha is chosen by an electoral college whereas the Lok Sabha is elected directly.

For most of its independent history, India's union government has been ruled by the Indian National Congress Party. Having been the biggest political group in pre-independence India, the Congress enjoyed nearly unchallenged dominance in national politics for over forty years. It was not until 1977 that a united opposition, under the banner of Janata Party, was able to win elections and form a non-Congress government.

India is divided into twenty-eight states (which are further subdivided into districts), six Union Territories and the National Capital Territory of Delhi. States have their own elected government, whereas Union Territories are governed by an administrator appointed by the union government.