(2)Where a certificate of indemnity has been granted to any witness it may be pleaded by him in any court and shall be a full and complete defence to or upon any charge under Chapter IX A of the Indian Penal Code (Central Act 45 of 1860), or Chapter IX of this Act arising out of the matter to which such certificate relates, but it shall not be deemed to relive him from any disqualification in connection with an imposed by this Act or any other law