(1) Subject to the provisions of article 276 of the Constitution of India, there shall be levied and collected a tax on professions, trades, callings and employments, in accordance with the provisions of this Act.

(2) Every person engaged in any profession, trade, calling or employment and falling under one or the other of the classes mentioned in the second column of the Schedule shall be liable to pay to the State Government tax at the rate mentioned against the class of such persons in the third column of the said Schedule:

(3) The State Government, after giving by notification not less than fourteen days’ notice of its intention so to do, may, by like notification, with prospective or retrospective effect, add to, amend, or alter the Schedule to the Act;