Hey Abdul,

The central universities generally require 50% of marks in 12th. But in order to get admission you have to appear for their entrance exam which is known as the CUCET. And based on that marks college and course will be allotted for you.

Check the below link in order to know more about the CUCET exam.

https://www.careers360.com/exams/cucet

Hope this helps.

All the best for your career.!!