Partner - Audit & Assistance
4825 Points
Joined December 2018
It would be trading. Supply of goods and services now is covered under GST.
Based on turnover, location - registration under GST would be required.
Classification of ID cards (without magnetic strip) based on the ingredients used in ID card classification may fall (probably) under HSN 3920 (18%) or 4901 (5%).
Credit would be eligible if registered under GST (purchase of goods, and ancillary like rent, etc.), and taxes charged could be claimed by customer.
Hope this helps.