If you are not able to remember your registered mobile number.
Below are steps to check your registered mobile number with Upstox.
Step 1: Enter your registered mobile number.
Step 2: Enter the 6-digit OTP received on your RMN.
Step 3: Enter your 6 digit PIN.
Step 4: Click on 'profile icon'.
Step 5: Click on 'My Account'.
Step 6: Click on '3 lines'.
Step 7: Click on 'Basic Information'.
Step 8: Check your registered mobile number with Upstox.
Step 9: This is how you can check your registered mobile number in the old Upstox app.