B.Tech

First of all, best of luck for you future. As, you asked what you will become after choosing civil branch in B.Tech of course you will become a civil engineer. The fact after becoming civil engineer, what will be you role? The answer is Civil engineers play an important role in our society. They design, construct, supervise, operate and maintain large construction projects and systems, including roads building, airports, house etc. For becoming a civil engineer one should be sound mathematically, scientific and IT skills.

Being an SC candidate, you need atleast 65% aggregate marks. It is 75% for general candidate.

I had asked one of my friends of NIT. He told me that most probably they check only certificate.

You need to clear JEE advance to pursue B.Tech in German university.

Your college fees will be 1.59 lakhs per year and mess fees will be 80K/year.

Hello Site,
If you want to pursue B.Tech, there is no special entrance test except JEE that is Joint Entrance Examination. On the basis of your 10+2 scores and JEE marks you will get admission for B.Tech. So if you want to apply for B.Tech degree you have to prepare for JEE as well as your 12th boards exam. Hope this was useful for you. All the best and thank you.

B.Tech graduate with what subject?

To transfer your college you need to consult college (at which you want to seek admission) and ask them about the availability of seat in the preferred branch if they give green signal then you need to take out a NOC from your college ( Where you are studying right now) and then you can change your college. If your recent college does not provide you the NOC then you won't be able to do so.