we have issued a one civil contract to A. as per service tax rules if principal employer provide the material to contractor for construction activity. there is service tax liability on employer side to pay service tax on material consumption value @ 4.12 in composite scheme. now contractor has submitted his invoice,in that invoice he is claiming only service tax part of material supplied value by principal employer. now my query is before realizing the payment for same should we deduct the TDS on that part or not? Please advise