Jaipur

No doubt, Malviya National Institute of Technology (MNIT) is a top engineering college in Jaipur. It is ranked 52 by MHRD-2018 report. Other engineering colleges in Jaipur are:
Global Technical Campus
Swami Keshvanand Institute of Technology, Management & Gramothan (SKIT), Maharishi Arvind College of Engineering and Research Center
Vivekananda Global University (VGU), Jaipur Engineering College & Research Centre (JECRC).

With this rank, you might get main campus of Manipal University. So, you can try to get admission in Jaipur Campus. And, they will provide you good placement.

No, CSE is the best stream in Manipal, Jaipur but if you are interested in mechatronics, then you can go with that. It's good but not the best.

Your chances are low to get this college in these marks, but you should try for this once.

Diffenitelly, Chitkara Business School, one of the best B- Schools of India which has consistently ranked among the top Business Schools in India in terms of parameters like infrastructure, faculty enhancements, curriculum pedagogy curriculum, research, placements, global interface by various prominent education portals.

MIT have its own entrance to join their courses. If you have JEE Score, it will add value to your application over there.

Hi, You can refer the below link for courses offered by Pearl Academy, Jaipur:
https://www.shiksha.com/college/pearl-academy-Jaipur-27681.

Hi, Find below the link to Shiksha's the finest college predictor which will help you know about various colleges and streams that you may have a chance to fit in:
https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor?utm_source=connect&utm_medium=CR_JEECP&utm_campaign=7489993
Wishing you all the best.

I would suggest you go from Amity University. It has better placement records, faculty members and better facilities.