CBSE 12th

Following are the best options for you:
Girijananda Choudhary Institute
Assam Engineering College
Jorhat Engineering College
IIT-Guwahati

BBA is easier than BCA, but remember after BCA, your chances of getting a good job increases many folds.

Yes, that's not a good condition. But, if you want CSE, then you can try and go for Engineering Colleges in Rajasthan. There are many colleges that offers CSE with such marks. All the best for your future.

Hello surender,
I would suggest you to Maharishi Markandeshwar University (MMU, Mullana), Ambala, for this integrated course of 5 years. Your admission will be based upon your 12th class performance. Go online on this university's site and apply for it.

Yes, of course, if you are passionate about it.
If you like aerospace, you can easily go for the course.

COURSES FOR SCIENCE STREAM STUDENTSCourses for Mathematics group students (P,C,M Subjects)
1 Engineering courses
2 B.Sc. Courses
3 B.C.A.
4 B.Arch.
5 B.Pharmacy.
6 B.B.A.
7 Commercial Pilot training
8 Diploma Course in Fire Safety and Technology
9 Merchant Navy related courses
10 JOIN ARMED FORCES
11 Diploma courses
12 Other good courses
13 Some Design related courses
14 Bachelor of planning
15 Bachelor of Interior design
16 Teaching & Education courses
17 Pharm D
18 Management Courses
19 Degree Courses from other streams

Please check the college details as per your marks, rank, branch and category in the link provided
below:
https://www.shiksha.com/b-tech/resources/mhcet-college-predictor
All the best.

There are many good colleges for BMS after class 12th. Please follow the link for the further information about the colleges:
http://www.bms.co.in/top-10-bms-colleges-in-mumbai/
All the best.

Dear Vinayak,
Cut-off of getting admission in Punjab university is very high for B.Com course. But still, you should fill up form & apply for it may be you get. All the best.