(b)in any other case, with rigorous imprisonment for a term which shall not be less than three months but which may extend to two years, and with fine. (2) If a person wilfully attempts in any manner to evade the payment of any tax, penalty or interest under this Act, he shall be punishable with rigorous imprisonment for a term which shall not be less than three months but which may extend to two years and shall, in the discretion of the court, also be liable to fine.