Received payment in Indian rupees

Hi! I m an Indian Exporter. A customer in Singapore remitted money in Indian Rupees in my a/c by T/T. I had provided him Proforma Invoice in Singapore dollars for payment by T/T. Now what should I do? Should i refuse to ship the material. Can I invoice in Indian Rupees? Please advise. Thank you

As you have received your payment...irrespective of the currency...you have to honour your commitment and ship the goods.As far as Invoicing goes/concerns...you can raise an Invoice in INR + VAT, but if you can prove to the 'Sales Tax' authorities that goods have been shipped abroad, you may claim the benifits of VAT refunded.