Explanation:

 1.  The receipts under Public Account do not constitute normal receipts of Government. Parliamentary authorization for payments from the Public Account is therefore not required.

2.  For Consoldiated fund of India, Parliamentary authorization is required.

3.  The Contigency Fund shall be placed at the disposal of the President to enable advances to be made by him out of such Fund for the purposes of meeting unforeseen expenditure pending authorisation of such expenditure by Parliament by law under Article 115 or Article 116.  Hence Parliamentary authorization is required.