Which is best: CSE IN THAPAR UNIVERSITY, ECE IN PEC, OR CSE IN NIT JALANDHAR?

Both branches are excellent. You must prioritize your interests. If all three colleges had CSE, PEC would have been the best option. All of these colleges offer comparable placements, with PEC having the upper hand.

In this case, however, it is clear that the average package in ECE would be lower than in CSE. City-wise, Chandigarh is unquestionably the best option, and the exposure you will receive at PEC will be slightly better.

The most significant advantage of NIT Jalandhar is that you earn the title of 'NITian,' as well as the opportunity to study in a nationally significant institute. You will have an advantage over students from these institutes in the industry because of this one factor. That speaks volumes about the opportunities and jobs available.

So, in that order, NIT Jalandhar > PEC ECE > Thapar CSE.

However, if you get CSE at PEC, choosing between NIT and PEC will be more difficult. However, you should choose NIT Jalandhar. The rest is entirely up to you.