Thapar University is clearly better for B.Tech CSE than Chitkara University.
Why Thapar > Chitkara (for CSE):
Stronger brand & reputation
Better placements (higher average & top packages)
More competitive peer group
Better faculty, coding culture, and alumni network
Chitkara is decent if:
You want lower fees
Easier admissions
More hand-holding and structured discipline
Verdict:
If you can afford it and get in → choose Thapar.
If budget or admission is a constraint → Chitkara is okay, but not in the same league.