Section 142(2) in Manipur Goods and Services Tax Act, 2017
(2)(a)Where, in pursuance of a contract entered into prior to the appointed day, the price of any goods is revised upwards on or after the appointed day, the registered person who had sold such goods may issue to the recipient a supplementary invoice or debit note, containing such particulars as may be prescribed, within thirty days of such price revision and for the purposes of this Act, such supplementary invoice or debit note shall be deemed to have been issued in respect of an outward supply made under this Act.(b)Where, in pursuance of a contract entered into prior to the appointed day, the price of any goods is revised downwards on or after the appointed day, the registered person who had sold such goods may issue to the recipient a credit note, containing such particulars as may be prescribed, within thirty days of such price revision and for the purposes of this Act such credit note shall be deemed to have been issued in respect of an outward supply made under this Act:Provided that the registered person shall be allowed to reduce his tax liability on account of issue of the credit note only if the recipient of the credit note has reduced his input tax credit corresponding to such reduction of tax liability.