No, you cannot join through CUET (Common University Entrance Test) after August 20, 2025. The CUET exam is typically conducted earlier in the year, and the application deadlines and exam dates for 2025 have already passed, according to the National Testing Agency (NTA). For example, the CUET UG 2025 registration closed on March 24, and the exams were held from May 8 to June 1.

To join through CUET, you need to apply during the application period, which usually opens a few months before the exam date. The exam itself is conducted by the NTA, and the results are used by participating universities for admissions.

Therefore, if you missed the CUET 2025 application and exam cycle, you will need to wait for the next year's cycle to apply and participate.