One of my client is D.O. holder of coal under in Jharkhand State Mineral Development Corporation Ltd., Ranchi. The department has deducted TCS from every bill of coal and as per law My client's liability is deduct TCS from every purchaser of coal and deposit in to bank & submit quarterly TCS return. But most of the purchaser have no PAN card and they have not submitting income tax return. So in this stage what should be do?