The Merit list of PU CET(UG) is prepared by using the following formula:
25% of 10+2 + 75% of PU CET marks
In order to secure admission, you need to get around 250 marks in PUCET and 90% marks or above in 10+2.
If you have the above mentioned marks, then you will have a chance to get admission in the main campus of PU.
The high marks requirements is due to low number of seats. There are 40 seats in each stream in main campus and around 3000 students get qualified in PU CET so the competition remains high.