CBSE 12th

CAT is considered. Your HSC marks is just a part of consideration .
It won't stop you from getting admission in college.

Yes you can get a seat with CAT score of 99 percentile

No there would not be any major problem.

You can pursue B.Tech or BCA + MCA.

B.Tech in CSE is the most preferred option to become a software engineer after completing class 12th. Indian IT industry also recruits software engineers with B.Tech IT, ECE, MCA and M.Sc CS / IT educational qualifications. BCA and B.Sc CS/ IT graduates are hired for junior software engineer or computer operations roles.

Hi shanthi,Your 10th,12th and graduation marks are pretty good.Now concentrate on XAT and score above 80 percentile.Then you will be called for written assessment test and personal interview.You have a very high chance of clearing it.All the best .Thank you

There are few universities such as Amity University offering four years integrated MBA course after 12th class. This degree course is a full-time degree course. No university offers distance learning MBA after 12th board.

The eligibility criteria for 3 years LLB degree course is graduation degree. If you want to do 3 years LLB degree course then you are advised to do graduation in any subject of your choice. This approach will take 6 years to complete LLB after 12th board. It will be good if you do 5 years integrated law degree.

I don't know that a space makes sense in a name or not, but you can go for an affidavit. It will surely solve your any problem regarding your name.

You can read your text books, then you can solve question papers. You will be able to get good grades or marks in your board exams.
Best of luck.