The process begins with applying online through the GST portal at gst.gov.in, under Services, then Registration, then New Registration. You enter your basic business details — PAN, business name, business structure, and state — to receive a Temporary Reference Number (TRN) via email and SMS.
You then log back in using the TRN to complete Form GST REG-01, upload your supporting documents (PAN, Aadhaar, address proof, business constitution documents, and bank details), and choose whether to complete Aadhaar authentication. Opting for Aadhaar authentication generally speeds up the process, whereas declining it means physical verification of your kitchen premises by a GST officer becomes mandatory.
After verifying all details and submitting digitally (via OTP or Digital Signature Certificate, depending on your business type), you receive an Application Reference Number (ARN) to track your application. Once approved by the GST officer, your GSTIN and registration certificate are issued, which you can then use for your FSSAI application, aggregator onboarding, and business bank account setup.