Hey dear,

According to CUET 2022 guidelines, candidates may select up to six subjects from the 27 domain subjects that are available for the exam.

>> There are four portions in the CUET Exam: two for language, one for a specific subject, and one for the whole thing. The candidate chooses how many subjects to take; it might be one or six. The 1A section, which covers Tamil, Telugu, Kannada, Malayalam, Marathi, Gujarati, Odiya, Bengali, Assamese, Punjabi, Hindi, Urdu, and English, is required for students to choose at least one language from. The other category, 1B, is elective and non-mandatory. The student's most recent language selection from class is the one to use (XIIth).

So, there is compulsion to atleast chose 1 subject as domain subject.

Hope it helps.