<s>[INST] What is the significance of the term "unless he has elected otherwise" in this context according to this provision? [/INST] The term "unless he has elected otherwise" in this context signifies that the Auditor-General of India holding office immediately before the commencement of this Constitution can choose not to become the Comptroller and Auditor-General of India on such commencement, despite being eligible for it. </s>