Term of office of members of the Senate.–1 [(1) The term of office of members of the Senate other than the ex-officio members, the members whose terms has been specified under this Act and the Life members, shall be three years from the date of their election or nomination, as the case may be, and shall include any further period which may elapse between the expiration of the said three years and the date of the next succeeding election or nomination not being an election or nomination to fill up any casual vacancy under section 64: Provided that a member elected, or nominated as a representative of any body shall be deemed to have vacated office with effect from the date on which he ceases to be a member of the body which elected or nominated him: 2[Provided that the tenure of office of the elected members under sub-section (19) of section 18 shall be one year with effect from the date of their election.] 3[(2) The Senate shall have perpetual succession and any of its acts or proceedings shall not be invalid merely because of any vacancy or vacancies in its membership.] Legislative changes (after 1982)–By Act 17 of 1993 sub-section (2) was added to this section. Since none of the preceding Ordinances chain of which was broken by this Act contained such insertion, sub-section (2) is to take effect from the date of passing of Act 17 of 1993.