IGST or CGST/SGST

CA Akhilesh Kumar Kandpal (Proprietor A K Kandpal & Associates)   (1442 Points)

04 July 2017  
if I am registered under Delhi and I have a warehouse in gurgaon (Haryana)....if one of my regular customer who works in gurgaon comes to buy a thing, stock of which is finished in my Delhi shop. I said him he can pay me here and take delivery of the goods from my warehouse....he agrees.....now what should I charge igst or CGST/sgst and why??