Mr.Nikhil Kumar
The Assessing officer having jurisdiction over the assessee (here the foriegn company) is empowered to issue a certificate either with a direction to deduct tax at lower rate or not to deduct tax. Now your problem is to find out who is having jurisdiction over the foriegn company.
Please refer section 197 of Income-tax Act.
Please note though the assessing officer is empowered to issue the certificate. As per administrative instructions he will before taking any decision he (the assessing officer) will send the file to his boss (the joint/addl. commissioner of income-tax). Hence it will take considerable time. If in your area International Taxation Department is opened in the income-tax office. The assessing officer will not have jurisdiction. Only the authorised officer in the International Taxation Department will have jurisdiction to issue the certificate.
Best Wishes
Sathikonda