Indian Education System

It's being almost four years since I am working as an s/w engineer with TCS and I don't think that I have utilized even 10% of what I have studied in my engineering days.
I sometime get a feeling that it was sheer waste of time; spending whole 4 years mugging up things which you are not sure will be required in your work.
I did my engineering in Electronics and studied about Radar and communication. Circuit designing and all those shit which I don’t use now. The only thing of interest I got to study then (and am using now) was the microprocessors, OS and the C programming language. Rest is all garbage for me now. I think I could have done more useful things in those 4 years (which I feel are the most crucial years for a student) that I spent writing (or to be true copying) all those assignments and practicals.
The Indian education system needs to be revised, giving the choices to the students about the subjects they want to study. The ICSE board has done a good thing of dividing the science and commerce streams right from class eight onwards. But again there are still some subjects which are not at all essential for the science students, but they have to take it as it is a part of the syllabus.