The correct answer is option 1 - Article 61. According to the Constitution of India, the President of India can be impeached under Article 61. Impeachment is a process through which a President can be removed from office if he/she is found guilty of violating the Constitution or committing any other serious misconduct.

Article 61 of the Indian Constitution lays down the procedure for the impeachment of the President. It states that a notice of impeachment can be given to the President by either the Lok Sabha or the Rajya Sabha. The notice must be signed by at least one-fourth of the total members of the House that gives the notice. After the notice is given, an investigation is conducted by a special committee and if the President is found guilty, a resolution for impeachment can be passed by a special majority.

It is important to note that impeachment of the President is a serious matter and requires strong reasons and evidence to support the charges. The process is designed to ensure that the President can be held accountable for any wrongdoing and to maintain the integrity of the office.