Section 5(6)(iv) in The Punjab State Agricultural Marketing Service (Punishment and Appeal) Rules, 1988
(iv)An order debarring the employee from counting his past service in the grade from which he is reduced if and when reappointed to it, amounts to an order of reduction to a stage of the grade lower than that admissible under Rule 4.4 of the Punjab Civil Services Rules, Volume I, Part I, and does not, therefore, fall outside the scope of Rule 5.