ITC Reversal on Return of Imported Goods

I have Imported some goods on which IGST was paid to the Customs Department and accordingly ITC was claimed for the Stock in Trade under Import of Goods Category. Now, for any reason, if I am returning those goods back to the supplier in the Foreign Country- Do I need to reverse the ITC Claimed for Import of Goods. If yes, Is there any mechanism to claim refund of IGST Paid on Import of Goods when the Imported Goods are being returned.