Computers & IT (Non-Engg)

Check for Techno India Institute. Check the below link for more-
https://www.shiksha.com/it-software/colleges/bca-colleges-kolkata

Dear,
It is possible. Before starting you should have primary knowledge of computer hardware, basic knowledge of different topology through which computers are connected. you should know network Fundamentals like LAN, MAN, WAN. Have a primary idea on OSI layered architecture. Basic IP addressing scheme. It is not verify difficult. Collect a book on computer networking. Go through. Then, go for CCNA. I think if you have that sort keenness and you are sincere enough you must be succeeded.
Best wishes.

Both central and state governments do not fill their IT vacancies by campus recruitment. You will have to apply against open and advertised posts by competing with all types of candidates to get government job.

Yes, B.Ed can be pursued after completion of any graduation program. Fee will depend on the college and mode that you opt for.

You can seek Admission in PG provided you are able to clear your back log before the cut off date of submission of documents which varies in each university.

Syllabus of both M.Sc CS and IT is similar and has an overlap of up to 80%-90%. CS grads have minor advantage that they may be considered for System Programmer job in addition I to Application Programmer's job. But in long run, both CS and M.Sc IT graduates have similar scope. Job opportunities will depend on university reputation and previous placement records.