Relinquishment of rights by members.

57. (1) Any person may, in writing, relinquish any right or privilege to which he may be entitled under this Act or the special rules if, in the opinion of the appointing authority, such relinquishment is not opposed to public interest; and nothing contained in this Act or the special rules shall be deemed to require the recognition of any right or privilege to the extent to which it has been so relinquished. (2) Relinquishment of a right or privilege for a temporary period shall be accepted if it is made for a period of not less than three years, subject to the condition that after the expiry of the said period, the claim of the right or privilege relinquished will be with reference to the state of affairs that exist on the date of expiry of the period of relinquishment and without restoration of original seniority. If relinquishment of right or privilege is made permanently and is accepted, subsequent claim of the relinquished rights or privileges shall not be entertained.