I needed my SBI account number urgently for a transfer and couldn't find my passbook. I used the SBI Anywhere app (just tapped on "Quick Balance" after logging in) and it displayed the number on the home screen. You can also use the missed call service: give a missed call to 09223866666 from your registered number, and you'll receive an SMS with your account number and balance. If you prefer a step‑by‑step web guide, there's a post at find SBI account number online — though the page is temporarily not loading, the methods above are reliable. Once you have your account number, Paykassma's platform can help you receive payments instantly with T+0 settlement.