Whoever, except as otherwise permitted by or under this Act, contravenes any provision of this Act or of any rules made thereunder, prohibiting, restricting or regulating the employment of persons in a motor transport undertaking, shall be punishable with imprisonment for a term which may extend to three months, or with fine which may extend to five hundred rupees, or with both, and in the case of a continuing contravention with an additional fine which may extend to seventy-five rupees for every day during which such contravention continues after conviction for the first such contravention.