In either of the following two cases, total volume will be far less than INR 20 Lakh/year. There are two ways I can do it...
1. Bitcoin sold directly to another person within India against NEFT/IMPS on LocalBitcoins.com. Please note that, it may be considered as inter-state supply as well as eCommerce.
2. Bitcoin sold at a Japanese exchange, where bitcoin has a legal status, and convert JPY to INR through bank transfer using SWIFT code. Please note that, it may be considered as export service.
Please note that...
i. I'm only interested in selling. Buying bitcoin has no implication of GST at buyer's end and my total volume is far less than INR 20 Lakh/year.
ii. I'm least interested to know whether GST is applicable or not for trading on Indian exchanges as I dont and I wont trade over there.
iii. If u r a CA, please do mention the same.
I am a CA final year student and can answer your questions. First of all you are not the service provider even if you buy or sell anything. You are just a seller selling your asset( lets say your car ever heard gst on it?). No matter what the amount of your car is you are not providing any service nor are you making any value addition.
The only person liable to pay GST here would be the japanese exchange. But as they do not lie in the Indian borders they are not taxable too. Moreover what you are doing is import of service and not export of service. The only service provider here is the japanese exchange platform which charge a fee and they would surely be paying an indirect tax to their govt as per laws.
I hope it answers all your queries.