It is mandatory to have GST number whether your turnover is less than 20 lakhs. There are other clauses with this.
1)If you want to do business intrastate then GST is mandatory.
2)For doing online business amazon asks for GST number.
We suggest you apply for GST number. Either you can go to local CA or you can apply to us.
>>>To get your GST form us first login into your Dashboard area, there on the left side menu you will see a new sub-menu called “Get Your GST No”.
Once clicked, it will take you to GST request page where you just need to click on the button which will immediately send your GST no request to our dedicated GST desk. We will take 1-2 week to provide your GST no or GSTIN.
Let me know if you have other queries.