(d) According to Constitution of India, President can resign from his office at any time by addressing the resignation letter to the Vice-President. The Vice-President of India can resign anytime by writting to President of India. The Comptroller and Auditor General of India (CAG) can be removed by the President on the same grounds and in same manner as a judge of Supreme Court (not President). A Judge of Supreme Court can resign from his office by writting to President of India. Hence, statements 1, 3 and 4 are incorrect and statement 2 is correct.