Section 26(3) in The Assam Technical Education Service Rules, 1981
(3)A member of the service, if so required shall be liable to serve in any Defence Service or post connected with the Defence of India, for a period of not less than 4 years including the period spent on training if any :Provided that such person shall not-(a)be required to serve as aforesaid after the expiry of 16 years from the date of appointment; and(b)ordinarily be required to serve as aforesaid after attaining the age of 45 years.
