The government has set up GSTN–a special purpose vehicle to provide the IT infrastructure necessary to support GST digitally.
Then again, your implementation might well require this logic to be on the server .
In order to get the number, there is a two-step process which is needed to be completed by each business.
On its part, the government has kept the process of online registration for GST quite simple.
All of these businesses will be assigned a unique Goods and Services Tax Identification Number (GSTIN).
But most are yet not aware of the new registration process and the identification number.