Special disability leave for accidental injury:

(1)The provisions of Rule 44 shall apply also to a Government servant whether permanent or temporary, who is disabled by injury accidentally incurred in, or in consequence of, the due performance of his official duties or in consequence of his official position, or by illness incurred in the performance of any particular duty, which has the effect of increasing his liability to illness or injury beyond the ordinary risk attaching to the civil post which he holds.
(2) The grant of special disability leave in such case shall be subject to the further conditions :-
(i)That the disability, if due to disease, must be certified by an Authorized Medical Attendant to be directly due to the performance of the particular duty;
(ii)that, if the Government servant has contracted such disability during service otherwise than with a military force, it must be, in the opinion of the authority competent to sanction leave,
exceptional in character’ and
(iii)that the period of absence recommended by an Authorized Medical Attendant may be covered in part, by leave under this rule and in part by any other kind of leave, and that the amount of special disability leave granted on leave salary equal to that admissible on earned leave shall not exceed 120 days.

Ref Rule 45 of CCS (Leave) Rules, 1972