You should apply for GST Registration for the following reasons:

  1. If you have unutilized input tax credit under service tax, VAT, etc, you can register under GST to carry forward this credit and use it for payment of output GST

  2. You can claim Input Tax Credit of the GST paid on purchase of goods and services

  3. You will receive Certificate of Registration that will act as valid proof of legal status of business

  4. If you plan to sell goods or services outside your state, GST registration is mandatory

  5. If you plan to sell goods or services on an e-commerce platform, GST registration is mandatory

Read more: GST Registration: Online Process, Documents, Fees, Eligibility