Colleges in Bangalore

Bangalore University is among one of India's good university in term of syllabus and time duration of course. MCA from BU is good decision. You will also get exposure of many IT companies there and will gain lot of experience.

Hi, first of all, congrats for your success. Yes, there are very good chances for you to get admission in decent colleges, such as Reva University and Christ university. So, go for it. All the best.

Yes, you may get a seat in REVA University for M.Tech.

Yes, you can get admission for MBA.
For details visit: https://www.shiksha.com/mba/course/master-of-business-administration-reva-university-yelahanaka-bangalore-201574.

For B.Com entrance test you can refer NCERT along with general English and aptitude.

You have to show the gap year certificate at the time of admission. There is no problem in such a process.

Dayananda Sagar College of Engineering (Evening College), Bangalore
M V J College of Engineering (Evening College), Bangalore
Nagarjuna College of Engineering and Technology (Evening College)and also there are other evening colleges in other parts of Karnataka. https://www.bangaloreeducation.com/engin

The Tuition fees is 21 lacs and the Hostel expenses ~ 2 lacs for IIM-B.

For this rank, it may be difficult to get government seats in DSCG if you are from general category. If you have a reservation then you may get government seats.
Good luck.