Do I need a separate PAN number for my business if I want to sell jewelry from home when registering for GST?
Certainly. PAN is basic requirement for any business, whether with GST or not.
If you are a proprietor, your own PAN Card will be considered as the business’ PAN Card. For any other business structures (Company, LLP, Partnership, etc.), a separate application for PAN allotment is made.
Coming to question of GST, GST Number i.e. GSTIN itself contains 10 digits of PAN of the concerned business. Check here the structure of GSTIN.