Assignment of Union collected taxes on inter State sales and consignments to States, with parliamentary distribution principles. Taxes on sale or purchase of goods and taxes on consignments occurring in the course of inter State trade or commerce are levied and collected by the Union but assigned to States; the net proceeds (except those attributable to Union territories) are excluded from the Consolidated Fund of India and must be assigned to and distributed among the States in accordance with distribution principles to be formulated by Parliament, which may also define when such transactions occur in the course of inter State trade or commerce.