Colleges in Punjab

You can expect a seat in Thapar University. It will be bit difficult as 79.2 percentile might be on lower side considering a fight for CSE branch. Eligibility in Thapar University for B.Tech is at least 60% aggregate in PCM/PCB. You can check the below link as well for other institutes you can expec

Yes, you have a really good shot of getting into this institution, you grades in both the exams looks good enough for you to get into the institute.

Here is the link you can use to get a prediction of some good college according to your rank:
https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor

You have two options to get admission in this college, the first one is JEE score basis and the second one is Punjab CET score basis Punjab CET is best option for you to get easily admission in this college. You can opt direct admission also.

They both are the same course. Thapar Institute in patiala calls it Computer Engineering while the Derabassi campus calls it Computer Science and Engineering.