Hello,

PU is punjab university. This is goverment college. There so many subjects offer so science one of them. You have to get admission in science stream by pucet examination. And you have to get minimum 40% marks in your 12th class. Then you will get admission in Punjab University . I'll provide you a link below you can check it for more details about the college

https://www.careers360.com/university/panjab-university-chandigarh

All the best.