What is the significance of the term "unless he has elected otherwise" in this context according to this provision?
The significance of the term "unless he has elected otherwise" in this context according to this provision is that it allows the Auditor-General of India holding office immediately before the commencement of the Constitution to choose not to become the Comptroller and Auditor-General of India on such commencement. If they decide against becoming the new position, they will have to leave their current position.