Karnataka

Hi,
List of college of MBA in Mysore:
SDM Institute for Management Development
Karnataka State Open University, Mysore
University of Mysore
Sri Jayachamarajendra College of Engineering (SJCE)
MYRA School of Business
JSS College of Arts, Commerce and Science (JSSCACS)
Vidya Vikas Institute of Engineering and Technology (VVIET)
Department of PG Studies,Visvesvaraya Technological University-Mysuru
Agriculture and Food Management Institute
International School of Information Management (ISIM Mysore)

Hello Shubhra,
The two colleges that you mentioned have quite good reputation. I suggest you select the one that is convenient to you.

Please refer to the link provided below for details regarding the NEET exam for 2018 whose dates shall be announced early next year. Important details like exam pattern, syllabus, etc are mentioned at the link provided below.
https://www.shiksha.com/medicine-health-sciences/medicine/exams/neet-ug

There are only two colleges across India which offers M.Sc (Information Security and Cyber Forensics), mentioned below are the names:
University of Madras
Center of Excellence in Digital Forensics - CoEDF

Please refer to the links provided below for details regarding a course in BBA hons from CMR University and Global Institute of Management Sciences. You should be able to compare the features of each college from the web page itself and then decide which college you would prefer to pursue BBA hons.
https://www.shiksha.com/university/cmr-university-bangalore-47389
https://www.shiksha.com/college/global-institute-of-management-bhubaneswar-22009

To know about the hostel fee per year I would request you to get in touch with the college authorities as they will be able to give you accurate details.
For contact details refer: http://www.theoxford.edu/

You need to have some really solid reason to justify your bad grades. College admissions officers don't want to hear excuses unless the circumstances were absolutely out of your control.
Mostly all the colleges take into consideration your academics and extracurricular. Some may grant you admission on payment seat. But you need to really struggle to for good colleges with this percentage.

Vidya Ashram is the best for coaching in Karnataka.
Other one's are:
Time coaching
Akash
Narayana IIT-JEE
Resonance

BE/B.Tech through lateral entry (direct second-year entry) will be the best for you, other degrees that you can opt for are BCA, B.Sc. CS/IT, etc.

There is no provision to lower the MCA time duration for experienced candidates I.e. the MCA duration even for the experienced candidates will remain 3 years.