can anybody tell me the prospect of jobs in the following field in the future?

No I don't think anyone can. If I were going to pick one of the three today I'd take electronic engineering but when I was a young man I'd have taken something like bomb shelter developement. The future will come to us before we can imagine what it will be.

finance - businesses and trade have been around since the dawn of human civilization and the market is forever expanding; you shouldn't have an issue finding a job with this major

electronic engineering...well i don't believe there is such a thing. do you mean electrical engineering or software design? as far as engineering goes..its currently a very good field to get into

polymer technology...i don't know much on this one but depending on where you live, if you're willing to relocate, how good you are, etc there is always the possibility of finding work.