For nil gst refund application cancel regard.

I have wrongfully applied for nil GST refund for Refund on account of ITC accumulated due to Inverted Tax Structure. Actually mistake was in entering Nil detail, so there was showing balance in Electronic Credit  ledger. But, I wrongfully applied for nil refund for Refund on account of ITC accumulated due to Inverted Tax Structure.  I have submitted application for nil refund and ARN has been generated. What should I do, to cancel refund application. Please let me know at earliest.