The system of State bodies of India

President of India
Ram Nath Kovind is the head of state of India 14th President of India.
Kovind was nominated as a presidential candidate by the ruling NDA coalition and won the 2017 presidential election.

Qualification for Candidate
No person shall be eligible for election as President unless he—
is a citizen of India,
has completed the age of thirty-five years, and
(c) is qualified for election as a member of the House of the People.
(d) he should not hold any office of profit under the Government of India

Manner of election of President
The President shall be elected by the members of an electoral college consisting of—
(a) the elected members of both Houses of Parliament; and
(b) the elected members of the Legislative Assemblies of the States.

Term of office of President
The President shall hold office for a term of five years from the date on which he enters upon his office.
Eligibility for re-election.—A person who holds, or who has held, office as President shall, subject to the other provisions of this Constitution, be eligible for re-election to that office.

Functions of President
(1) to grant pardons, reprieves, respites or remissions of punishment or to suspend, remit or commute the sentence of any person convicted of any offence.(Article 72)
(2)to promulgate Ordinances during recess of Parliament(Article 123)

Termination of President
(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;
(c) the President shall, not with standing the expiration of his term, continue to hold office until his successor enters upon his office.

Legislative Power