Trade Union Act, 1926
17. Criminal conspiracy in trade disputes
No 8[office-bearer] or member of a registered trade
union shall be liable to punishment under sub-section (2) of section 120B of
the Indian Penal Code, 1860 (45 of 1860) in respect of any agreement made
between the members for the purpose of furthering any such object of the trade
union as is specified in section 15, unless the agreement is an agreement to
commit an offence.