USA

First, you need to check if a university will accept 50% or not. Also, take the SAT. The course regarding which you have plenty of options and flexibility in US, just visit a university's website and check the undergraduate majors. You can study anything you want as long as you meet the requirements.

Hi,
A first class is recommended. But, to pursue MBA from USA you must have four years undergraduate degree, work experience and GMAT.

You are eligible for admission in a university abroad but may find challenges in getting admission to a good university abroad because of your academic performance. You are advised to prepare well for GRE/ GMAT and score very high marks to increase your chances of admission abroad.

Hi Shivam,
There are limited scholarships available for bright students, both in terms of academics and extra-curricular and who can demonstrate financial need. They will also evaluate on family income, etc. before granting you an aid.
You can visit the below mentioned link:
https://college.harvard.edu/financial-aid/applying-aid/international-students

For a middle class student in USA, they do part-time jobs and also get education loan.

Hi Sujata,
When are you planning to study in US? To get a job in USA is not easy. A three year Bachelor's degree is not accepted by most of the universities. They require 16 year of education. So, you must research well and narrow down your choices. If you are looking for a one year affordable course, you can check options in Australia or New Zealand.

Yes, if it is a top ranked university otherwise you can do it from any university in India as well. Some of the top advertising schools in the US you should consider are the University of Illinois at Urbana - Champaign, University of Florida - Gainesville, Boston University, UT Austin to name a few.

Hi Damana,
You can apply, but your scores are not too fit for a top ranked university. However, you should keep in mind that universities in US consider the overall profile, so if you have a very good academic record, extra-curricular activities, work experience and any other value addition, you may get through.

Hi Kumar,
Are you looking for a Bachelor's degree?