Section 28B(1) in The Rajasthan Administrative Service Rules, 1954
(1)As soon as the Appointing Authority determines the number of vacancies [under rule 9 of these Rules] [Substituted by No. F. 1(15)DOP/A-II/79, 30-6-81.] and decides that a certain number of posts are required to be filled in by promotion, it shall, subject to provisions of sub-rule (9), prepare a correct and complete list of the senior most persons who are eligible and qualified under these Rules for promotion on the basis of seniority-cum-merit or on the basis of merit to the class of posts concerned.