To apply for passport services, one must visit the Passport Seva Portal and register as a new user by creating an ID. After logging in, the applicant selects the required service and can either download an e-form to fill out offline and upload later, or fill out the application form online. The applicant then schedules an appointment at the nearest Passport Seva Kendra (PSK) by selecting from available dates and making a payment if required. On the appointment date, the applicant visits the PSK with the application receipt and required documents.