To apply, candidates must submit their applications online. First, visit the official RRB website at rrbapply.gov.in. Then, carefully read the RRB NTPC 2024 notification. After understanding the basic details, proceed to register by providing your name, date of birth, email ID, and mobile number. Once registered, log in and fill out the application form with accurate information. Upload the required documents, and then proceed to the payment option. The application fee must be paid online. Ensure that the completed application is submitted by the due date.