CAT Application Form Filling 2025 process is an important step for CAT and IIM aspirants. After release of CAT Notification, CAT application form will be available online on the official CAT website iimcat.ac.in. To fill CAT application form, you need to complete CAT registration, and then provide your personal, academic, contact details and required documents, and make fee payment before last date. CAT Form filling start date is August 1, 2025 (expected). CAT 2025 Application Form Fees is Rs 2500. Read this article to know how to apply for CAT 2025 exam.