Article 377 of Constitution of India "Provisions as to Comptroller and Auditor-General of India"
The Auditor-General of India holding office immediately before the commencement of this Constitution shall, unless he has elected otherwise, become on such commencement the Comptroller and Auditor-General of India and shall thereupon be entitled to such salaries and to such rights in respect of leave of absence and pension as are provided for under clause (3) of Article 148 in respect of the Comptroller and Auditor-General of India and be entitled to continue to hold office until the expiration of his term of office as determined under the provisions which were applicable to him immediately before such commencement.
Article 378 of Constitution of India "Provisions as to Public Service Commissions"
(1) The members of the Public Service Commission for the Dominion of India holding office immediately before the commencement of this Constitution shall, unless they have elected otherwise, become on such commencement the members of the Public Service Commission for the Union and shall, notwithstanding anything in clauses (1) and (2) of Article 316 but subject to the proviso to clause (2) of that Article, continue to hold office until the expiration of their term of office as determined under the rules which were applicable immediately before such commencement to such members.
(2) The members of a Public Service Commission of a Province or of a Public Service Commission serving the needs of a group of Provinces holding office immediately before the commencement of this Constitution shall, unless they have elected otherwise, become on such commencement the members of the Public Service Commission for the corresponding State or the members of the Joint State Public Service Commission serving the needs of the corresponding States, as the case may be, and shall, notwithstanding anything in clauses (1) and (2) of Article 316 but subject to the proviso to clause (2) of that Article, continue to hold office until the expiration of their term of office as determined under the rules which were applicable immediately before such commencement to such members.