(2)If on leave on private affairs under sub-rule (3) or on leave on medical certificate under the first proviso to sub-rule (2) (i) of Fundamental Rule 81-B, to leave salary equal to half the amount specified in sub-rule (1) or sub-rule (2) above, as the case may be, subject to a maximum of Rs. 750;Provided that the limit of Rs. 750 shall not apply if the leave is for pursuing an approved course of study otherwise than on study leave terms;