Source document: https://docs-lawep.s3.us-east-2.amazonaws.com/1697803259816.pdf (India)
Exhcts of provisions in FJL 56 F.R.

56(a) Except as otherwise provided in this rule, every Government servant shall retire from service on the afternoon of the last day of the month in which he attains the age of sixty years: Provided that a Government servant whose date of birth is the first of a month shall retire from service on the afternoon of the last day of the preceding month on attaining the age of sixty years.
Provided further that a Government servant who has attained the age of fifty-eight years on or before the first day of May, 1998 and is on extension in service, shall retire from the service on expiry of his extended period of service.

Or on the expiry of any further extension in service granted by the Central Government in public interest, provided that no such extension in service shall be granted beyond the age of 60 years.
(b) A workman who is governed by these rules shall retire from service on the afternoon of the last day of the month in which he attains the age of sixty years.

(bb) The age of superannuation in respect of specialists included in the Teaching, Non-Teaching and Public Health Sub-cadres of Central Health Service shall be 62 years.
"Provided that for the specialist included in the Teaching sub-cadres of the Central Health Service who are engaged only in teaching activities and not occupying administrative positions, the age of superannuation shall be sixty-five years: provided further that such specialist of the Teaching Sub-cadres of Central Health Service who are occupying administrative positions shall have the option of seeking appointment to the teaching positions in case they wish to continue in service up to sixty-five years."
(bbb) The age of superannuation in respect of nursing teaching faculty with M.Sc in Nursing in the Central Government Nursing Institutions shall be 65 years subject to the condition that they continue to function as faculty members after the age of 60 years.

(c) Deleted.
(cc) Deleted (d) No Government servant shall be granted extension in service beyond the age of retirement of sixty years: Provided that a Government servant dealing with budget work or working as a full-time member of a Committee which is to be wound up within a short period of time may be granted extension of service for a period not exceeding three months in public interest; Provided further that a specialist in medical or scientific fields may be granted extension of service up to the age of sixty-two years, if such extension is in public interest and the grounds for such extension are recorded in writing: Provided also that an eminent scientist of international stature may be granted extension of service up to the age of 64 years, if such extension is in public interest and the grounds for such extension are recorded in writing.
Provided also that notwithstanding anything contained in any rule, the Central Government may, if considered necessary in public interest so to do, give extension in service to a Cabinet Secretary in the Central Government for such period or periods as it may deem proper subject to the condition that his total term as such Cabinet Secretary does not exceed four years.
Provided also that the Central Government may, if considers necessary in public interest so to do, give extension in service to the Defence Secretary, Foreign Secretary, Home Secretary, Director, Intelligence Bureau, Secretary, Research and Analysis Wing and Director, Central Bureau of Investigation in the Central Government for such period or periods as it may deem proper on a case-to-case basis, subject to the condition that the total term of such Secretaries or Directors, as the case may be, who are given such extension in service under this rule, does not exceed two years.
Provided also that notwithstanding anything contained in the fifth proviso, the Central Government may, if considers it necessary, in public interest, so to do, give an extension in service for a further period not exceeding three months beyond the said period of two years to the Home Secretary and the Defence Secretary.
Provided also that, the Central Government may, if considered necessary in public interest so to do, give extension of service to the Secretary, Department of Space and the Secretary, Department of Atomic Energy, for such period or periods as it may deem proper subject to a maximum age of 66 years.
Provided also that the Appropriate Authority shall have the right to terminate the extension of service before the expiry of such extension by giving a notice in writing of not less than three months in the case of a permanent or a quasi-permanent Government servant, or, of one month in the case of a temporary Government servant, or pay and allowances in lieu of such notice.