[Save as otherwise provided in this Act, the conditions of service relating to travelling allowance, provision of rent-free residence and exemption from payment of income- tax on the value of such rent-free residence, conveyance facilities, sumptuary allowance, medical facilities and such other conditions of service as are for the time being applicable to a Judge of the Supreme Court under Chapter IV of the Supreme Court Judges Act, and the rules made thereunder, shall, so far as may be, apply to a serving or retired Comptroller and Auditor-General as the case may be:]
Provided that nothing in this section shall have effect so as to give a person, who immediately before the date of assuming office as the Comptroller and Auditor-General, was in the service of Government, less favourable terms in respect of any of the matters aforesaid than those to which he would be entitled as a member of the Service to which he belonged, his service as Comptroller and Auditor-General being treated for the purpose of this proviso as continuing service in the Service to which he belonged.