As an applicant, you must complete the IRCTC agent registration online with IRCTC authorized PSP Si Online. Fill up personal information, business details, registration form & KYC details. After the payment procedure, users need to wait for authority approval. Once the application is verified, the applicant will get an IRCTC authorized agent letter with a unique ID. Users can start by logging in to their accounts for online customer ticket booking. SiOnline provides tutorial videos that help new users follow the registration process.