(1) In cases where any civil employee serves as the acting in any post, or as the officiating in any post for a period of more than Fifteen days, such a civil employee who has so served shall
be entitled to obtain the salary and allowance of the post in which he or she has served, with effect from the date of such service.
(2) The salary and allowance obtainable by a civil employee who has served as the acting or officiating pursuant to Sub-rule (1) shall not exceed such salary and allowance as may be obtained by him or her if he or she is promoted to one class higher post.
Provided that, the amount of salary and allowance to be so obtained shall not be less than the salary and allowance being drawn by him or her.