The initial substantive pay of a Government servant who is appointed substantively to a post on a time-scale of pay which has been reduced for reasons other than diminution in the duties or responsibilities attached to posts thereon and who is not entitled to draw pay on the time-scale as it stood prior to reduction, is regulated by Rule 22 :
Provided, both in cases covered by clause (a) of that rule and in cases, other than those of re-employment after resignation, removal or dismissal from the public service, covered by clause (b) of same rule, that if he either—
(1) has previously held substantively or officiated in—
(i) the same post prior to reduction of its time-scale, or
(ii) a permanent or temporary post on the same time-scale as the unreduced time-scale of the post, or
(iii) a permanent post other than a tenure post or a temporary post, on a time-scale of a pay, identical with the unreduced time-scale of the post, such temporary post being on the same time-scale as a permanent post, or
(2) is appointed substantively to a tenure post the time-scale of which has been reduced without a diminution in the duties or responsibilities attached to it and has previously held substantively or officiated in another tenure post on a time-scale identical with the unreduced time-scale of the tenure post;
then the initial pay shall not be less than the pay, other than special pay, personal pay, or emoluments classed as pay under Rule 9(21)(a)(iii) which he would have drawn under Rule 22 on the last such occasion, if the reduced time-scale of pay had been in force, from the beginning and he shall count for increments the period during which he would have drawn that pay on such last and any previous occasion.