Electronics

If you go opt to study in Germany then that would be one of the best decisions you will be making. Germany has the name for providing best education in engineering field in various fields. It also has many popular universities.

Yes. Anyone above the age of 15 can apply for FX School courses.

Top B.Sc. Entrance Exams in India are mentioned at the link provided below. In order to pursue a Science course at any of the top colleges they will have to appear for an entrance. In this article we have listed some popular B.Sc. Entrance exams that Science aspirants should consider giving in order to secure admission in a good college. https://www.shiksha.com/science/articles/top-bsc-msc-entrance-exams-in-india-blogId-13484.

You have few like travel agency, photography, etc. But these courses don't have any link with ECE field.

Of course, you can.
And in any university now a days, a combination of CSE and EC will give you job opportunity in making graphics card
good scope of the combination of these two.
Best wishes.

To do a PhD, you need to apply for a seat first in a university after having completed your masters. Regarding entrance exams you would need to check for the requirements set forth by the university as these can differ form one to another. If you wish to study PhD abroad as there are many benefits of doing this like stipend while studying, tuition fees wavers and others, you can visit Shelldreams Overseas website. They are expert study visa consultants who can guide you in this matter since they specialize in PhD abroad.