(1) Any civil employee who has completed the age of fifty-eight years or completed the tenure as
referred to in Section 17 shall ipso facto retire from the civil service.
(2) Even the civil employees who are incumbent in the civil  service on the extension of their tenure after completion of the thirty-year service period, prior to the commencement of Sub- section (1), may hold office in the civil service until they complete the age of Fifty Eight years.
Provided that, in the case of the employees whose tenure of service is specified pursuant to Section 17, that Section shall be  applicable.
(3) For purposes of this Section, the age of a civil employee shall be calculated on the basis of the age to be set from the birth  day or year inscribed in the certificate of educational institute submitted by him/her at the time of joining the service or the age to be set from the birth day or year inscribed in the citizenship
certificate or the age to be set from the birth day or year inscribed in the sheet roll/personal details filled up by him/her at the time of joining the service, at whichever age he/she gets retired earlier.