Section 189(4) in The Navy (Pension) Regulations, 1964
(4)In the cases referred to in sub-regulations (2) and (3) the pension disbursing officer shall take precautions to prevent impersonation, and shall, at least once a year, require proof independent of that furnished by the life certificate, of the continued existence of the pensioner. For this purpose, he shall (save in cases of pensioners who are exempted from personal appearance by any State Government or Administration and female pensioner not accustomed to appear in public) require the personal attendance and the due identification of all pensioners who are not incapacitated by bodily illness or infirmity from so attending and in all cases where such inability is alleged, he shall require proof thereof in addition to the proof submitted of the pensioner's existence. A pensioner of commissioned rank may be privately identified by the pension disbursing officer and need not be required to appear at a public office.