Refund - TNVAT Act

Hey can anyone help me in this matter.

                    An assessee has paid VAT on job work charges. And he has exported that commodity . So will that be allowed as refund under tamilnadu VAT Act. Because in Act Zero rated is mentioned in respect of Inputs i.e Purchases . there is no mention of Job work charges. So please clarify regarding this because plenty of objections are raised by the department in regard to refund. If refund can be claimed please tell me the procedure for claiming refund.