Germany

Hi Vivek,
80% and above is recommended. The higher the grades the better. Some universities even require 90% and higher. You must also note that you cannot apply after 12th. Universities in Germany requires 13 years education. You can enrol into a bachelor degree program and complete the first year with very good grades and apply. Or you clear your IIT JEE Advanced. Check this
http://www.daaddelhi.org/en/15064/index.html
You must also learn German language.

There is no coaching required to do MS in Germany. You must concentrate on your studies and try to obtain excellent grading in your current engineering degree. You must try to build your personality and technical skills beyond your degree syllabus by joining an Technical group or Community of Practice. Learning German language will come very handy for education in Germany.

Hi,
MBA programs require work experience, several top notch business schools in Germany and other countries abroad requires at least 3 years of work experience and also you must take your GMAT or GRE. Without work experience you should look for a MS management degree.

Munich Technical University, Germany is the top university in Germany for the same. The cost would be around 50p to 1000 euro per semester.

Hi,
Education in Germany is almost free. For Master's degree program, a semester fee of around 250 to 500 Euros must be paid. You must also bear the living expenses.

Hi Harshit,
Yes, you can apply for a Bachelor's degree after completing Diploma. You must also check the further entry requirements such as your grades, relevant education, IELTS or TOEFL scores.

No, placements differ from one university to another university and it depends upon the reputation of that particular university.

Hi,
There is no good or bad university in Germany. German universities are extremely selective and reputed such as Freie University of Berlin, RWTH Aachen, TU Berlin and TU Munich. Except the private universities, education in Germany is almost free. Universities normally charge a minimal semester fee. Since eligibility criteria are different for different universities you should visit university's websites or DAAD website for details.

Christ University is offering MBA with dual specialization. It is one of the best university in Bangalore.

Hi Shashidhar,
With a work experience of 1-year you should consider doing M.Sc Management or M.Sc Business Administration. MBA programs typically require 2 to 3 years of work experience. For entry requirements you must check the university websites, every university's eligibility are different. You would be required to take GRE or GMAT, and IELTS or B1 to c2 level of German language certification. Check DAAD website too.