Hi, currently I am in the process of starting my E-commerce business through Amazon and I want to sell my products through FBA. I am from Kerala and I came to know that the nearest amazon FBA storage facility is in Coimbatore. So from my research I learned that I have to take two GST numbers (one for Kerala & one for Tamilnadu) if I want to sent my products to Coimbatore facility. After some more research I heard that Amazon might assign your products to be shipped to other facilities in other states, so my question is do I have to acquire GST number for every state that Amazon have storage facility or I only have to take two GST numbers.

I am really new to this area and the GST formalities are really hard to understand, so please clarify my doubts seniors.