t-MOTP (tsis Mobile One Time Password) were entered into the existing login ID and password for user authentication in addition to the additional one-time password (One Time Password) to generate a software-based security solutions. account information via t-MOTP threats such as hacking your precious personal information, you can help protect. how to use the t-MOTP? site using the t-MOPT serial number and registration number to sign up for OTP authentication. t-MOTP issue of the site after issuance of the OTP one-time password to login ID, password, along with the details. One-time password is automatically updated every 60 seconds.