OTM, or ‘One Time Mandate’ is a one-time registration process wherein the investor authorizes his/her bank to execute debits to his bank account up to a certain limit based on requests received from the service provider. OTM debits will happen through the National Automated Clearing House (NACH).


National Payments Corporation of India (NPCI) has implemented the National Automated Clearing House (NACH), which is a centralized web system for banks, corporates and financial institutions to facilitate interbank, high volume, electronic transactions which are repetitive and periodic in nature.