Hello aspirant , hope you are doing good. As i can see you are interested in giving Cental Universities common entrance test. So the process is that the admissions to CUCET 2021 programmes is provided on the grounds of  performance given by the candidates in the entrance examination. There are a total of 18 participating institutes which offer seats in CUCET programmes 2021, you can fill your preferences once you clear the exam and choose accordingly.

So for your convenience I'm gonna drop few links which you can check out to get information as well as previous year question papers.

https://university.careers360.com/articles/cucet-programmes

https://university.careers360.com/articles/cucet-sample-papers

Hope this will solve your queries

Thank you