166. (1) No person shall be a member of both Houses of the Legislature of a State and provision shall be made by the Legislature of the State by law for the vacation by a person who is chosen a member of both Houses of his seat in one House or the other.
(2) No person shall be a member both of Parliament and of the Legislature of a State and if a person is chosen a member both of Parliament and of the Legislature of a State, then, at the expiration of such period as may be specified in rules made by the Governor of the State, that person’s seat in the Legislature of the State shall become vacant, unless he has previously resigned his seat in Parliament.
(3) If a member of a House of the Legislature of a State-
(a) Becomes subject to any of the disqualifications mentioned in clause(i) of the next succeeding article; or
(b) Resigns his seat by writing under his hand addressed to the Speaker or the Chairman, as the case may be, his seat shall thereupon become vacant.
(4) If for a period of sixty days a member of a House of the Legislature of a State is without permission of the House absent from all meetings thereof, the House may declare his seat vacant:
Provided that in computing the said period of sixty days no account shall be taken of any period during which the House is prorogued or is adjourned for more than four consecutive days.