Explanation:

President of India can only be impeached for 'violation of the constitution' by Parliament through a quasi-judicial procedure called Impeachment. The impeachment charges can be initiated by either house of parliament. These charges must be signed by 1/4th members of house which framed the charges & a two-week notice is given to president. Once impeachment resolution is passed by majority of 2/3rd of total members of that house , then it is sent to other house which should investigate the framed charges and President has the right to appear at any such investigation. If the other house also upholds the charges & impeachment resolution is passed by two-third majority of total membership , President stands impeached on passing of the resolution .