Company "A" is an Pipe Manufacturer, and Company "B" is an Coating Contractor,and Company "C" is a Client based at Delhi. Both the Compnay "A" & "B" operating their business at Gujarat. Company "C" has given an order for pipe manufacturing to Company "A" and asked to deliver the pipes to Company "B" for Coating activities. (i.e further process) Now the Company "B" has to deliver the duly Coated Pipes to Punjab & Haryana as desired by the Company "C". In this circumstance, Pipe Manufacturer will charge CST or VAT in their Excise Invoice cum Delivery Challan?. Also Coating Contractor will charge CST or VAT in their Excise Invoice cum Dlivery Challan for the ultimate delivery spot (i.e. Punjab, Haryana -Outside Gujarat)
Kindly clarify the Sales Tax implications of both the Company "A" & "B" in their Excise Invoice cum Delivery Challans.