The Tribunal observed: "It is trite that at any time during the service, it is open to an employee to make a request for the alteration of the recorded date of birth and that if the request is supported by cogent evidence to establish that the recorded date is wrong, correction has to be made." The Tribunal also noticed the submission of the learned counsel for the appellant to the effect that the judgment in Darshan Singh 's case (supra) was not applicable because unlike in Darshan Singh 's case, who had no occasion to see his service book even once during his entire service career, the respondent herein had not only seen his service book several times but had also signed the same at various places in verification of the correctness of the entries made therein and had never objected to 873 the date of birth as contained in the first page of the service book or as given in various seniority lists prepared and published form time to time till September 1991.