Every taxpayer whose annual revenue exceeds 40 lakhs must register for GST. If you wish to offer goods and services at occasions or exhibitions where you don't need a permanent home for your business, you must register for GST
Types of GST Registration
Compulsory Registration. Under certain situations, the dealer must take Compulsory Registration under GST irrespective of the turnover. ...
GST Return Filling Service is a document that will contain all the details of your sales, purchases, tax collected on sales (output tax), and tax paid on purchases (input tax). Once you file GST returns, you will need to pay the resulting tax liability and avial or adjustment output tax against input tax.