CBSE 12th

Check out the predictors below for colleges:
https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor
https://www.shiksha.com/mhcet-college-predictor.

Hi Dheeraj,
You have to first decide where you want to study, remember that every country has different admission requirements and you have to prepare accordingly. Mainly, you have to maintain good academic record, so work hard on your studies, if you are a good student you will have options everywhere. You must also take the TOEFL or IELTS for English language proficiency requirements. You may have to take exams like SAT or ACT if you want to study in USA.

You can apply for law programmes via CLAT Entrance exam, DU LL.B. Entrance exam, AILET Entrance exam and a lot of more law admission test.
CLAT application form are online, Get details here: http://www.clearlawentrance.com/2017/11/clat-application-form.html
For knowing about DU LL.B. Application form : http://www.clearlawentrance.com/2017/11/du-llb-entrance-exam-application-form.html
For other exams: http://www.clearlawentrance.com.

Hi Garjot,
Popular courses after B.Com are:
B.Com
B.B.A.
B.MS.
B.B.S.
C.A.
B.F.A
Integrated LLB
B.H.M.
B.Sc. Economics
B.Sc. Applied Mathematics
Bachelor of Journalism and Mass Media
and so on.

Hi Rupesh,
There are many competitive exams after 12th non medical, which exam you can take will depend on your desired programme of study and your stream and subjects you studied. Popular ones include
JEE Main Entrance ExamBITSAT 2017 Entrance ExamDelhi University Entrance Exams After 12th Science PCMUUEE Entrance ExamPondicherry University Entrance ExamAMU Entrance Exam ICAR AIEEA Entrance ExamKIITEE Entrance ExamUPESEAT Entrance ExamMU OET Entrance ExamBVP CET Entrance ExamSAAT Entrance ExamAllahabad University Entrance ExamsSymbiosis Entrance Test (SET).

After 12th you can do BBA, BCA, B.Com. Such courses are best and if you want to do BBA for that details are as follows:
Any student who has passed 12th with a minimum of 45% is eligible to take admission in BBA.
Procedure for taking admission take your required documents like 10th marks card,12th marks card, study certificates, transfer certificate, caste and income certificate if claiming declaration for fees concession and have 2 set of of photocopies of it with you and take it to the college where you are interested to take to admission for BBA.

What course do you wish to pursue?

You mean, you are currently pursuing software engineering and with that, you want to do something? I suggest you to do some certification course (in the field which you feel comfortable to do).

It is very hard to say, but you can refer the following link to get a fair idea
http://www.iimrohtak.ac.in/admission/wat-pi-2015.html.