Well, You have no claim in relaxation in lower age limit as organizations are free to make rules as they deem fit for the organization!
A case regarding Lower Age Limit was filed by a candidate in which he stated that PPSC has asked for minimum age to be 35 and his age was 31.5, after multiple hearings, the case was dismissed.
You can read about it here:
http://aujlawyers.com/relaxation-low...nment-service/
Best of Luck