Haryana

The minimum eligibility criteria for PG courses is at least 50% marks in graduation or equivalent from a recognized university. However, for some courses the minimum cut-off may be higher.
Relaxation of 5% is granted to candidates from SC/ST category.
M.Sc (medical biotechnology) follows a different process wherein admission is done through JNU CEEB.
For the rest of the courses, the university conducts the entrance test. There's a common entrance test for all the M.Sc courses conducted by the science department except M.Sc forensic science.

You are equally eligible as the student of any other board to give the exam.

To be eligible for DU LLB, an aspirant must possess a graduate or post graduate degree from any recognised university. Also the aspirant must possess the requisite
marks in the qualifying examination which depends upon the category of the aspirant that is of the candidate is of general category or reserved category.

Yes, you can. There are lots of colleges who offers part time MBA courses. I don't know about the good colleges in Bangalore and Gurgaon but in Pune our college Department of management science Pune University (PUMBA) has an course called Executive MBA where lots of working people do their MBA. Actually, they had classes at night about 7 PM and its a 3 year course.

It is based upon the percentile and not the marks. You will get the mail for the selection according to that.

Screening is based on merit and you have taken two years extra plus your percentage is also not good, hence you might face some issue in the admission, for more details contact the college authorities:
https://www.shiksha.com/science/course/m-sc-in-computer-science-maharshi-dayanand-university-rohtak-270929

Refer the link below for all the details:
https://www.shiksha.com/engineering/course/diploma-in-mechanical-engineering-delhi-engineering-college-dec-faridabad-176441