Please refer to income tax amended section 194C, through Finance Act (2) of 2009, No deduction shall be made from any payments made to a contractor during the course of business of plying, hiring or leasing goods carriages, (or say Transport Contrctor)on furnishing of his valid PAN to the deductor.
This new subsection 6 of 194-C makes such transport contractor to compulsorily provide PAN to the Deductor, failing to which TDS will be made by Deductor @ 20%.
Also note that Deductor should furnish a separate return containing the details of Transport Contractors, who have provided PAN and TDS has not been made in accordance to subsection 6 of 194C in format prescribed by income tax deptt.
Now (from Sep'2010), the income tax deptt. has provided the prescribed format for filing of return containing the details of Transport Contractors.