Under Article 61 of the Constitution, the President of India can be impeached for the violation of the Constitution, which is solely to be decided by the Parliament.

Explanation:

The President’s impeachment process is detailed here. We have assumed that the Lok Sabha is the first house to bring impeachment charges against the President; however, the Rajya Sabha can also bring impeachment charges against the President, and in that case, it will pass a resolution and send the charges to the Lok Sabha, which will investigate and pass them if the charges are found to be valid.