The Indian President is eligible for re-election for how many times?

Which article of the Indian Constitution prescribes eligibility conditions for re-election to the post of the President of India?

In India, the President is elected by-

Electoral College for the election of the President of India consists of -

The Chief Minister of a State in India is not eligible to vote in the Presidential election if-

At least how many days of prior notice is required for the impeachment of the President of India?