Section 226(3) in The Navy (Pension) Regulations, 1964
(3)Verification of signatures of the individual - While authorising payment of commuted value, the Controller of Defence Accounts (Pensions) shall forward to the Pension Disbursing officer Form 30 specified in Appendix VIII containing the signatures taken in the presence of the medical authority with instructions that they should be verified with those received with the Pension Payment Order.