Hello

Rank wise KIIT is better than the other two. It has better faculty and higher packages and higher chance of placement as compared to thapar. Manipal jaipur has lower rank.
you can choose between KIIT and thapar based on your personal preference.
few differences between thapar and KIIT are mentioned below:

Infrastructure wise thapar is better. The fees of thapar is slightly higher than KIIT. But doIng CSE from KIIT would open more ways for your future. It is more of a practical approach.

Good luck!!