Section 27(5) in The Rajasthan State Pollution Control Board Employees Service Rules and Regulations, 1993
(5)Selection for promotion from the lowest post or category of post on the Executive post to the next higher post or category of post of the service and for all posts in the subordinate and ministerial service shall be made strictly on the basis of seniority-cum-merit.Provided that in the event of non-availability of persons with the requisite period of service the Committee may relax the prescribed period of service if they are found otherwise suitable for promotion.Explanation. - If in the service, in any category of post, number of post available for promotion is an odd number then for purpose of determining the vacancies for selection by promotion on the basis of seniority-cum-merit and merit in the proportion of 50 : 50, the following cyclic order shall be followed :The first vacancy for seniority-cum-merit:The subsequent vacancy by merit:The cycle to be repeated.
