The State of Himachal Pradesh Act,1970
Section 9. Provision as to sitting members
Every sitting member of the House of the people representing a constituency which, on the appointed day, by virtue of the provisions of section 8, becomes a constituency of the State of Himachal Pradesh, shall be deemed to have been elected under sub-clause (a) of clause (1) of article 81 to the House of the People by that constituency.