Refund under gst

You can claim for refund of unutilized credit only under following circumstances:
1. If you are making a Zero rated supplies i.e exports and supplies to SEZ. or
2. Inputs accumulated because of inverted duty structure i.e eg: your inputs are taxed say at 18% but your outputs are taxable at 12% then you can claim the refund.

if your case fits into any of the above situation then you can claim refund otherwise carry forward the ITC.