MNIT Jaipur - Malaviya National Institute of Technology Answered Questions

If I would rank these two colleges (MNIT and MNNIT) on the basis of campus, hostel life, placements, faculty, and infrastructure, then I would suggest you MNNIT.
As for MNNIT - Allahabad, from what I know from my friends who went there, it's great for someone interested in the core branch as well as the teachers being so supportive for someone pursuing his/her passions.

Yes you may change your college with the approval from chancellor of the universities. Aayogan School of Architecture is well known college in Jaipur, here is a link for all approved architecture colleges across India - https://www.coa.gov.in/index1.php?lang=1&level=0&linkid=25&lid=26

The user recommends following institutes
BGS School of Architecture and Planning

Your information is incomplete. You didn't mention your home state. However, considering that you have got this rank in JEE Main - you are good to get any top branch in your state's NIT. Consider going for EEE or CSE branches. If you like building things, go for Mechanical Engineering - it is a great branch as well. All the best.
Revert to me with better details for a comprehensive answer.

Hello,
I would say that ranking wise MNNIT comes above MNIT but when mechanical engineering is compared then definitely I would say that MNIT is better as here we have different core companies coming like TATA MOTORS, M&M, BRAHMOS AEROSPACE, BPCL, HPCL, etc. Also, we have in our college very experienced faculty with different mechanical engineering societies like SAE BAJA, CAE Society, which help the students in not only learning what is engineering, but also be in constant coherence with the latest trends and technologies in current industry.