Answer : 1. "Article-61"
Explanation :

1. Article 61 of the Indian Constitution provides for impeachment of the President. According to this article, when the President is impeached for violation of the Constitution, the charge shall be preferred by either House of Parliament.

2. The procedure of Article 61 is as follows-

First Stage: A motion to impeach the President is made in either House after not less than fourteen days' notice in writing signed by not less than one-fourth of the total number of members of that House.

Second stage: The motion is passed by a majority of not less than two-thirds of the total membership of the House.

Third step: The passed motion is sent to the other house.

Fourth stage: The second chamber investigates the allegations.

Five stage: If the other house finds the allegations true, the impeachment motion is passed.