We need the secret totp key that is provided by Aliceblue when you enable the TOTP
If you have already enabled TOTP, then you should have this key. Most likely you would have entered in TOTP based apps like Google Authenticator. In case you do not have the key, then you can disable TOTP and re-enable it.
TOTP setup option is available on login screen (after you enter your password)
You will be shown a QR code
Scan it in Google Authenticator app on your phone (this will show you TOTP which you will need for login)
Click Can’t scan? Copy the key link
Although you wont see any popup, the key will be copied to clipboard
Just open notepad & paste it (we will need this key later)
Now, enter TOTP shown on authenticator app & activate the TOTP on aliceblue website
Note: Only once you have enabled TOTP, then proceed with next steps.