Regarding adding of warehouse

asheeq ua (ca ipcc) (313 Points)

17 June 2020  
One of my client is doing business in rented building. Now he has built new building and added to the business.

1. How to add in gst site?

2. Tax receipt from panchayth is enough right?

3. And next year he may cancel rented building and shift all business operarion to his own building. At that time what he supposed to do?
How to cancel old rented building from business operation?

Dear experts, Please kindly advise me