In terms of the provision of Section 54(3) of the CGST Act, 2017 subject to conditions, refund of unutilized input tax credit would be available in respect of zero rated supply or where ITC has accumulated on account of rate of tax on inputs being higher than the rate of taxon the output supply. However, such refund of ITC would not be available if export duty is payable on the goods so exported out of India.
(FAQ 25: MINING)