Section 11B(i) in Rules to regulate the Employment, Suspension, Removal and Conduct of Officers and Servants of Improvement Trusts in Punjab
(i)a Trust may, if it is of opinion that it is in public interest to do so, by giving one month's notice in writing retire any of its employees on the date on which he couplets twenty-five years of service, or attain fifty years of age, or on any date after to be specified in the notice.