What is GSTIN?
All the business entities registering under GST will be provided a unique identification number known as GSTIN or GST Identification Number.
Currently any dealer registered under state VAT law has a unique TIN number assigned to him by state tax authorities. Similarly, service tax registration number is assigned to a service provider by Central Board of Excise and Customs (CBEC).
Under GST regime, all these parties will come under one single authority and the different identification numbers will be replaced by a single type of registration number for everyone (GSTIN). This will ensure better administration by the authorities and greater compliance by taxpayers and hopefully improve tax collection.