Article 61 of the constitution provides for the impeachment procedure of President. The impeachment can be done on the basis of violation of the constitution.
No such charge shall be preferred unless-
the proposal to prefer such charge is contained in a resolution which has been moved after at least fourteen days’ notice in writing signed by not less than one-fourth of the total number of members of the House has been given of their intention to move the resolution, and such resolution has been passed by a majority of not less than two-thirds of the total membership of the House.
When a charge has been so preferred by either House of Parliament, the other House shall investigate the charge or cause the charge to be investigated and the President shall have the right to appear and to be represented as such investigation.
If as a result of the investigation a resolution is passed by a majority of not less than two-thirds of the total membership of the House by which the charge was investigated or cause to be investigated, declaring that the charge preferred against the President has been sustained, such resolution shall have the effect of removing the President from his office as from the date on which the resolution is so passed.
Since the majority required to impeach President is the most difficult one, it is a difficult task to achieve. In our constitutional history no President has been Impeached.