Section 11(4) in Haryana Municipal Services (Integration, Recruitment and Conditions of Service) Rules, 1982
(4)The appointing authority may besides the two posts indicated in Appendix A for reasons to be recorded in writing, sanction a selection grade to a member of any category of a Service, who has completed at least eight years of continuous service as such on the basis of his seniority-cum-merit, against twenty per cent posts of the total sanctioned strength to that category.
