Export of Services - Commission - Input reg.

Hi all,

Assessee received commission from a Foreigner for the Sale of Foreign machinery here (export of services), And also he has paid Service tax to another local commission agent for the sale of same asset (input). What I want to know is whether he is eligible to claim refund of Service tax paid to local agent. If so is there any time limit for claiming such refund.

Manikandan.A.V