Which was the only instance when the President of India (Giani Zail Singh) exercised his Pocket Veto power?

President of India exercises his powers

Who among the following Presidents exercised a power which is ‘Pocket veto’ in Constitutional terminology?

The president of India don't have which veto?

The single instance of the unanimous election of the President of India so far was the election of –

Which provision of the Constitution of India provides that the President shall not be answerable to any Court in India for the exercise of powers of his office?