Ph.D

Every institution that confers a PH. D in English literature will have the "scope" of their program and its options. These vary greatly from area of emphasis to area of emphasis and from one institution to another.
Decide what you are interested in learning and becoming an expert in and then find the doctoral program that allows you to pursue your interests.

I would suggest you to go for International Bussiness for your PHD over economics because International business comprises all commercial transactions (private and governmental, sales, investments, logistics, and transportation) that take place between two or more regions, countries and nations beyond their political boundaries.

You are eligible to seek admission in M.SC Computer Science after B.Sc general provided you have Maths as a subject in 10+2 or in Graduation degree. After M.SC CS you can do M.Tech CS and PhD as per your personal interest and preferences.

Hi,
Every university in Germany has research activities and scope for Ph.D. You can check the DAAD website for your requirements. Here's the link:
http://www.daaddelhi.org/en/

Hi Nisar,
Your ultimate goal is a Ph.D, so the programme combination won't really matter. Education system abroad is very different also. Stick to your goals, perform well in class, engage yourself with high-class research work and publication and try to enroll in MS -Ph.D abroad for better job prospects.