President, Vice-President & Council of Ministers
The Union executive under Articles 52-78: powers, election and removal of the President and Vice-President, and the Council of Ministers headed by the PM.
The Office of the President (Articles 52-62)
Article 52 declares that 'there shall be a President of India.' Article 53 vests the executive power of the Union in the President, exercisable directly or through officers subordinate to him in accordance with the Constitution. He is the constitutional head of the Indian Union and the supreme commander of the Defence Forces (Article 53(2)).
The President is elected indirectly by an electoral college (Article 54) comprising elected members of both Houses of Parliament and the elected members of the Legislative Assemblies of States and of the Union Territories of Delhi and Puducherry (the latter added by the 70th Amendment, 1992). Nominated members and Legislative Council members do NOT vote. Election is by the system of proportional representation by means of a single transferable vote (Article 55), with value of votes calculated to maintain uniformity among States and parity between Union and States. Disputes are decided by the Supreme Court (Article 71).
Qualifications, Term and Removal
Under Article 58, a candidate must be a citizen of India, at least 35 years of age, qualified for election to the Lok Sabha, and must not hold any office of profit. The term is five years (Article 56), and the President is eligible for re-election (Article 57)—Dr. Rajendra Prasad served two terms (1950-1962).
The President can be removed only by impeachment for 'violation of the Constitution' under Article 61. The charge may originate in either House, must be signed by one-fourth of the members, with 14 days' notice, and be passed by a two-thirds majority of the total membership of each House. Nominated members can participate in impeachment though they cannot vote in the election—a favourite Prelims distinction. No President has ever been impeached.
Powers
The President wields executive, legislative, financial, judicial and emergency powers. Legislative powers include summoning and proroguing Parliament, dissolving the Lok Sabha (Article 85), and the ordinance-making power under Article 123, upheld but circumscribed in D.C. Wadhwa v. State of Bihar (1987) and Krishna Kumar Singh v. State of Bihar (2017), which held re-promulgation a 'fraud on the Constitution.' The pardoning power under Article 72 covers pardon, reprieve, respite, remission and commutation, and uniquely extends to death sentences and court-martial sentences—distinguishing it from the Governor's Article 161 power.
The veto powers are absolute, suspensive and pocket veto (no time limit fixed by the Constitution to act on a bill); President Zail Singh used the pocket veto on the Indian Post Office (Amendment) Bill in 1986. The 24th Amendment (1971) made the President bound to assent to a Constitution Amendment Bill. By the 42nd Amendment (1976) and clarified by the 44th Amendment (1978), Article 74(1) makes the President bound by the aid and advice of the Council of Ministers, though he may return advice once for reconsideration.