Hello Mukul,

Yes you can get admission in Punjab university with 80 rank in defence quota but you can only get Biotechnology there as the cutoff for other branches goes very high . For CSE your rank should be under 15 ,for EEE  top 50 for mechanical your rank should be under 70 . You can get mechanical engineering if your luck works on the day of counselling as the cutoff of biotechnology and mechanical are much closer.

Hope for the best.

Thank You!