Constitution of India, 1949
269.Taxes levied and collected by the union but assigned to the States.-
(1) The following duties and taxes shall be levied and collected by the Government of India but shall be assigned to the States in the manner provided in clause (2), namely:-
(a) duties in respect of succession to property other than agricultural land;
(b) estate duty in respect of property other than agricultural land;
(c) terminal taxes on goods or passengers carried by railway, sea or air;
(d)taxes on railway fares and freights;
(e) taxes other than stamp duties on transactions in stock-exchanges and futures markets;
(f) taxes on the sale or purchase of newspapers and on advertisements published therein;
(g) taxes on the sale or purchase of goods other than newspapers, where such sale or purchase takes place in the course of inter-State trade or commerce;
(h) taxes on the consignment of goods (whether the consignment is to the person making it or to any other person), where such consignment takes place in the course of inter-State trade or commerce.
(2) The net proceeds in any financial year of any such duty or tax, except in so far as those proceeds represent proceeds attributable to Union territories, shall not form part of the Consolidated Fund of India, but shall be assigned to the States within which that duty or tax is leviable in that year, and shall be distributed among those States in accordance with such principles of distribution as may be formulated by Parliament by law.
(3) Parliament may by law formulate principles for determining when a sale or purchase of [or consignment of] goods takes place in the course of inter-State or commerce.