Previous sanction necessary for prosecution (1) No court shall take cognizance of an offence punishable under section 161 or section 164 or section 165 of the Indian Penal Code (Act 45 of 1860), or under sub section (2) of section 5 of this Act, alleged to have been committed by a public servant, except with the previous sanction, (a)in the case of a person who is employed in connection with the affairs of the Union and is not removable from his office save by or with the sanction of the Central Government, of the Central Government, (b)in the case of a person who is employed in connection with the affairs of a State and is not removable from his office save by or with the sanction of the State Government, of the State Government, (c)in the case of any other person, of the authority competent to remove him from his office.