To fill the admission form for  B.Sc. (Hons.) Mathematics, first check if the university accepts CUET scores or follows a merit-based process. If CUET is required, register for it through  the official NTA website and appear for the exam. After visit the official website of the university or college you are applying to and complete the application form by entering your personal, academic, and CUET details Upload the required documents like your photo, signature, and 12th marksheet, then pay the application fee and submit  the form. Keep checking the website for merit lists or counselling updates.