Section 47(8)(iii) in The M.P. Civil Services (Pension) Rules, 1976
(iii)If sons and unmarried daughters are alive, unmarried daughters shall not be eligible for family pension unless the sons attain the age of [25 years] [Substituted by Notification No. B-25-18-9S-PWC-IV, dated 22-6-1996 (w.e.f. 9-11-1994).] and thereby become ineligible for the grant of family pension.