Hey there,

Hope you are doing great. For your question, answer is probably, YES. Because, the syllabus for NEET UG and CUCET is totally different. So, if you see for CUCET, the syllabus, generally include, English language, Logical Reasoning, Quantitative Aptitude, Analytical skills and General Awareness and Current Affairs. However, in NEET UG you do not have any of these subjects, you will only have the sciences.

Check the link for information about the CUCET exam:

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

Hope it helps!