pension under the Ordinance, he may, on his retirement from the public service in circumstances in which he is permitted by the law or regulations of the service in which he is last employed to retire on pension or gratuity, be granted in respect of his service under the Government a pension of such an amount as shall bear the same proportion to the amount of pension for which he would have been eligible had his service been wholly under the Government, as the aggregate amounts of his pensionable emoluments during his service under the Government shall bear to the aggregate amounts of his pensionable emoluments throughout his service in the Group.
(2) In determining for the purposes of this regulation the pension for which an officer would have been eligible if his service had been wholly under the Government
(a) in the application of regulation 16
(i) where the officer is not serving under a Scheduled Government at the date of his retirement from the public service, subject to sub-sub-paragraph (ii), the highest pensionable emoluments enjoyed by him in the service of a Scheduled Government shall be taken;
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(ii) if, by reason of any order made in any disciplinary proceedings against the officer, the