Pune

MIT Pune has two separate colleges. Kothrud branch and Loni branch. Your JEE main marks is nothing to do with MIT admissions. However for Kothrud branch you should write MHCET or you can opt for management quota. Rs 1.55 lakhs per annum fee is the fee.
For Loni branch, it's a deemed university. You just visit the college office with money and you get admissions. Both are best colleges.

Fees
Total Fees
INR 6.7 Lakh
Mess charges are INR 36,000/-
Refundable security deposit is INR 3,600/-

Here's the list of some colleges offering B.Sc in Pune :
https://engineering.shiksha.com/bsc-colleges-in-pune-categorypage-2-64-1-0-0-174-114-2-0-none-1-0

Hello Sunny,
With just 54 percentile in CET, it's quite difficult to get admitted into a "good" B-school in Pune and the colleges giving you admission won't be "good"; it would be a waste of both money and time to pursue MBA from such colleges. I would advise you prepare well and given these exams another shot next year. Try aiming 98+ percentile in order to stand a chance of getting a "great" B-school in Pune or Mumbai.

GD-PI round is compulsory in all MBA colleges for admission selection. You have to prepare hard for it. But it is not difficult to crack.
https://www.shiksha.com/mba/colleges/mba-in-sales-marketing-colleges-pune
Go to above link to get list of good MBA colleges (Marketing) in Pune.

Hello Talib,
All the private colleges of Pune have management quota seats so you may take admission via this, but you need to talk to the colleges very soon as the seats fills very fast.