Out of LNMIIT, Jaipur, Thapar Institute, Patiala and BIT Mesra, Jaipur Campus colleges, which is the best option for doing b tech.
all are very good private colleges I would suggest you to take admission in BIT mersa or LNMIIT since Thapar is in downfall right now. Year by year its cutoff is increasing and its overall rank decreasing.
LNMIIT is a good choice and BIT mersa too. Both have exceptional placements highest placements of both are very good. BIT Mersa produces 4-5 students for GSoC too which is an upper hand.
Location of BIT Mersa might trouble you else everything is good. Mnanagement of LNMIIT is not good though they try to fail as many students due to greed.
I think overall BIT Mersa is a good choice.
Hope it helps
Hey Parth, the colleges that you have mentioned in the question are all good private colleges. But, if you are to make a choice, I will suggest you Thapar Institute, Patiala. It's old, has good placement stats and is ranked among the top private colleges in India. Find more about Thapar Institute - http://www.thapar.edu . Priority wise : Thapar > LNMIIT > BIT Mesra (Jaipur) . LNMIIT is equally good, you can join there if you are getting your desired branch here and not in Thapar. Good luck!