Hello,

https://www.cucetexam.in/

This is the official site for you to know the general Instructions and admission related queries.

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

You can download the question paper of all year's from this link.

For undergraduate courses, the CUCET sample papers is divided into two sets of question paper codes.

The sample papers also have  model questions for you to practise before attempting the entrance test.

Answer key can be checked here

https://university.careers360.com/articles/cucet-answer-key

https://www.cucetexam.in/

Or through this official site.

Hope this helps!!