Duty draw back benefits

Dear Experts,

I am confused on this issue . Please help.

We are a readymade garment traders , recently started exporting readymade garments. My query is , are we eligible for duty draw back benefit ? We exported garments to Dubai and received payment in advance in INR in our bank . are we eligible to get this benefit even if payment received in INR and not in foreign currency.

Please reply ASAP.

Regards

Aarushi