Section 25(2)(a) in The Rajasthan Civil Services (Commutation of Pension) Rules, 1981
(a)by giving notice in writing to the Head of Office withdraw his application within fourteen days from the date on which he receives the certified copy of Part III of Form 4 and endorse a copy of notice to the [Director, Pension Department] [Substituted vide F. D. Notification No. F. 1 (45) FD/Gr. 2/83, dated 17-1-1984 w.e.f. 1-12-1983.], or