Programming Languages

You should really learn MATLAB, if you want to do aerospace.
Ada and FORTRAN are popular with aerospace.
Between C+ and Java, you are probably better off with C+ .
C would be even better.
MATLAB is definitely the best though.

You can join any institute which are teaching programming in database, because in Noida there are many institute which are teaching programming and other courses also. Which you may get suitable, you should opt for.

You can consider:
1. Let us C by Yashwant Kanetkar
2. Programming in C by Reema Thareja

Assuming you're asking this because you're not confident of your calculus skills, you've nothing to worry about. A computer can perform arithmetic and logical operations only. Any and all other computations can be emulated via programming.

C for sure, irrespective of the department and university. You may want to learn Python for your projects. Learning MATLAB scripts will also be helpful. Check your university syllabus to know more.

Learning C will definitely help, although it's not a requirement. They basically share almost the same syntax.

Some of the roles that I can think ( to begin with )of for IT sector are:
Developer, testing engineer, network engineer, hardware engineer, system analyst, web developer, web designer, Tech support, quality teams, DBA. On the other hand there are people who have their careers in business analysis, or as a technical trainer, business development specialist. Upon a couple of years of experience, you could change your role, or move onto leader position in the same ladder too.

Preferably I'll tell you to learn C. C is also there in WBUT UG engineering syllabus for first year, so learning C in advance will help you to cope up with classes. Also while other will struggle learning C, you may learn advance C or other languages like C+ and Python.
C+ is a subset of C, so it'll be really easy to learn C+ after leading C. In job interviews, they preferably ask questions from your basic knowledge of C. So learning C in depth is always welcome.