In Section 3 of the principal Act,
(i) in sub-section (1)
(a) for the words and figures Delhi Motor Vehicles Taxation (Amendment) Act, 1989 the words and figures Delhi Motor Vehicles Taxation (Amendment) Act, 2004 shall be substituted;
(b) in clause (b), for sub-clause (ii), the following shall be substituted, namely:
(ii) the same have been earlier registered in Delhi or in any other state, then having regard to the month of their first registration in Delhi or, as the case may be, in that other State, a one time tax which shall be equal to the amount specified in column (2) of Part B of Schedule I, minus the proportionate amount at one-tenth of the tax so calculated for each completed year from the month of first registration of motor vehicle;
(c) after the proviso, the following proviso shall be inserted, namely:
Provided further that the Government may, by notification in the Official Gazette, change from time to time, the description of motor vehicles in column (1) of Part B of Schedule I.
(ii) for sub-section (2), the following shall be substituted, namely:
(2) The Government may, by notification in the official Gazette, increase or, as the case may be, decrease from time to time, the rate specified in Schedule 1 in relation to any motor Vehicles:
Provided that any such increase or, as the case may be, decrease shall not apply in respect of a motor vehicle specified in Part B of the said Schedule on which one time tax has been levied and collected.