(1) The tax payable under this Act shall be paid in the prescribed manner.
(2) The amount of tax due from enrolled persons for each year as specified in their enrollment certificates shall be paid:-
(3) (a) Subject to the rules, any person holding a certificate of enrollment and liable to pay tax at the rate of rupees 1700, 2200 or as the case may be, 2500 per annum, may discharge his liability for payment of tax under this Act for a total continuous period of five years by making payment in advance of a lump sum amount equal to four times of such rate of tax on or before the 30th June of the year.
(b) If any such lump sum payment is not made on or before such date, but is made on or before the end of the year, such person shall be liable to pay an additional lump sum amount for the period of delay at the rate of rupees 200 per month, in addition to the amount of lump sum payable under clause (a).
(c) Any increase or decrease in the rate of tax shall not vary the liability of tax payable by such person who has paid such lump sum amount in lieu of tax.