Constitution of India, 1949
56. Term of office of President.-
(1) The President shall hold office for a term
of five years from the date on which he enters upon his office:
Provided that -
(a) the President may, by writing under his hand
addressed to the Vice-President, resign his office;
(b) the President may, for violation of the
constitution, be removed from office by impeachment in the manner provided in
Article 61:
(c) the President shall, notwithstanding the expiration
of his term, continue to hold office until his successor enters upon his
office.
(2) Any resignation addressed to the
Vice-President under clause (a) of the proviso to clause (1) shall forthwith be
communicated by him to the Speaker of the House of the People.