USA

Unfortunately Sailey, 48% is not acceptable by any foreign university. There are standards which you must meet. Atleast 55% is required. Canada and US for that matter are extremely competitive and very high percentile would be required.

If you have selected computer subject in your 12th then you have a chance to do B.Sc in computer science.

Yes definitely. In fact, since IIFT has MBA in international business, you will have an edge.

From what I have heard, pursuing in US is better.

USA and Canada. It is a two year course tuition fees 18 to 20 lakhs INR and living expenses 12 lakhs INR.
Australia and New Zealand tuition fees is 23 lakhs INR and living expenses 15 lakhs INR. In UK, the fees will be 12 lakhs INR and living expenses 10 lakhs INR.
German follows US system. If you have more than 85 % marks, then you will get total free education.

Hello, typically you are required to gain 2 to 3 years of work experience on completion of your Bachelor's degree and also take the GMAT or GRE. You may take either one of TOEFL or IELTS. For the average score requirements you should visit the university websites. MBA programs in US are regarded to be among the best and most selective in the world. They look for all-rounders and candidates who can contribute to the class on the whole.

It is difficult to get job and work visa on the basis of Diploma in Electrical experience. Once you gain few years of experience, you have some chance to get a job in USA.

Hello, if you have a competitive profile you can avail a scholarship. Normally, applicants are considered for scholarships at the time of application and awarded on merit basis. MS programs generally lead to a Ph.D, whether you want to complete your Ph.D after your MS has to be your sole decision based on your career goals. A few MS programs are such that you have to continue to a Ph.D program after completion of the MS program e.g a couple of programs in Arizona State University.

IELTS is valid only for two years. Take IELTS again. Take GRE with good score, and then apply.