Whether Class 12 marks matter after CUET-UG depends on the specific university you’re applying to. Here’s the breakdown:

Officially:

CUET-UG scores alone are not used to determine final admission: Your Class 12 marks aren’t directly incorporated into your CUET-UG score.
Minimum eligibility: However, you must score at least 50% in Class 12 (or equivalent) to be eligible for admission through CUET-UG.
University discretion:

Individual universities have the authority to decide how much weight to give to Class 12 marks: Some universities may consider them heavily, while others may focus primarily on your CUET-UG score.
Reservation policies: Universities may also use Class 12 marks in conjunction with CUET-UG scores to determine eligibility for reserved seats.
Recommendations:

Check university websites: Always refer to the specific admission policies of the universities you’re interested in. They will clearly state how much weightage they give to Class 12 marks and CUET-UG scores.
Don’t neglect Class 12: Even if a university doesn’t heavily weigh Class 12 marks, they still serve as an eligibility requirement and demonstrate your academic ability.
Additional points:

Some universities might consider Class 12 marks in subjects relevant to your desired program.
Strong performance in Class 12 can strengthen your application even if the weightage is low.
Remember, CUET-UG is a significant step, but your Class 12 performance still holds value in the admission process. Research individual university policies to make informed decisions about your applications.