Exam

Yes, maths, English and science are compulsory subjects.

Hello! With that low score, it is impossible to get even a decent college to pursue MBA. The cut-off of all good colleges is generally 80+ percentile. I suggest you reappear for CET and/or other exams and aim for a higher score. Good luck!

Hello! If you want to pursue MBA full-time then you need to appear for at least one of the several entrance exams whose scores are considered by the colleges for their respective admission processes. There is no other way one can get admission in a reputed college apart from it.
https://www.shiksha.

Yes, definitely! You can apply for LLM.
There are some universities/colleges whose criteria is 50% or above. One such popular college is Amity University where LLM criteria is min 50% or above. Admission time is going on in various universities so stop wasting time & fill up the form till it ends.

You can go for R. S. Agarwal which is available at all the bookstores & this will help you a lot in preparing you for the exams. Thank you.

Yes, you have a fair chance of getting admissions in Lala Lajpat Rai considering your GDPI goes well. Thank you.