CBSE 12th

Hello Sujit,
In board exams, you need to have at least 65% as you belong to SC category. In JEE Mains exam, you need to score above 180 so that you may get a seat in a good NIT or IIIT.

For BBA+MBA visit : http://www.iimidr.ac.in/academic-programmes/five-year-integrated-programme-in-management-ipm/ipm-admissions-details/.
For MBA(PGDM) visit : http://www.time4education.com/CAT-MBA/Admission-Criteria/IIM-Admission-Criteria.

Hi Nitish,
Litigation (assuming this to be your 'lawyer's job' is just one among the various options one has as a law student. In order to go for the judiciary, the best option for you will be to get enrolled in a 5-year BA LLB course, and then try for various judiciary exams, conducted at state level.

Hi Nima, you can apply, but universities will check why you took the gap and you have to justify the same very nicely. If you had or have work experience its good for your profile. Also, you must take the SAT and TOEFL to pursue Bachelor's degree in USA. Write to some universities in USA and check with them directly. They are very responsive and will guide you.

Yes, you are eligible for this exam and you can also write this exam. There are many examples of hard work.

I think that B.Sc has an option, where we can take combination of economy and mathematics.

Yes, you can appear for the entrance exam and interview by registering on the http://amity.edu/. You can get admission with that percentage. Best of luck.