Section 135A of Code of Civil Procedure 1908 "Exemption of members of legislative bodies from arrest and detention under civil process"
(1) No person shall be liable to arrest or detention in prison under civil process-
(a) if he is a member of-
(i) either House of Parliament, or
(ii) the legislative Assembly or Legislative Council of a State, or
(iii) a Legislative Assembly of a Union territory,
during the continuance of any meeting of such House of
Parliament or, as the case may be, of the Legislative
Assembly or the Legislative Council;
(b) if he is a member of any committee of-
(i) either House of Parliament, or
(ii) the Legislative Assembly of a State or Union territory, or
(iii) the Legislative council of a State,
during the continuance of any meeting of such committee;
(c) if he is a member of-
(i) either House of Parliament, or
(ii) a Legislative Assembly or Legislative Council of a State having both such Houses, during the continuance of a joint sitting, meeting, conference or joint committee of the Houses of Parliament or Houses of the State Legislature, as the case may be, and during the forty days before and after such meeting, sitting or conference.
(2) A person released from detention under sub-section (1), shall, subject the provisions, of the said sub-section, be liable to re-arrest and to the further detention to which he would have been liable if he had not been released under the provisions of sub-section (1).