CSE at Thapar Patiala is much better when compared to GNDU Amritsar. This choice majorly depends on the individual and might vary from person to person.
If you are dedicated and passionate about the field you are pursuing and are eager to learn, then whichever college you choose, you will definitely succeed. As you are not dependent on the college’s reputation, but learning the skills for the industry for your betterment.
Also, your economic stability is a major concern. If the fees are not your problem you can choose Thapar over GNDU. Thapar provides better exposure and salary packages, whereas GNDU has average placements offering lower salary packages.
But if fees are one of your major concerns, then opt for GNDU, as it will be better.