M.Tech

Cyber Security is itself an important aspect. However, it also depends on your own capability of understanding the entire subject. You can also pursue CISSP, certification which covers all the aspects of cyber security. I hope this would suffice.

Of course, you can pursue M.Tech twice, but both M.Tech have at different duration of time i.e after completion of first, you can do 2nd. Or, you have do 1st as distance learning mode and at the same time you could take admission in 2nd M.Tech degree with your valid GATE score card. Hope, I have given complete details regarding your doubt.

No, M Tech is not recognized through distance education mode by AICTE.

Among all of these colleges, BIT Dhanbad is best for M.Tech. It is ranked among the top of the colleges in India.

The best college in Bangalore for M.Tech is Indian Institute of Science:
http://www.iisc.ac.in/.
You can check the official website for more information.
Hope it helps.

Yes, It is indeed possible. It is offered by BITS-Pilani. Since, BCA is a 3-year degree programme, the duration of M.Tech course is 4 years (for B.Tech/BE students, it is 2 years). BITS-Pilani has a separate division called WILP (Work integrated learning programmes), wherein working professionals can continue their higher studies. Wipro offers its candidates M.Tech through WILP BITS-Pilani. Students work on live projects from Monday to Friday, attend M.Tech classes on Saturday and have their semester exams also conducted on Saturday/Sunday.

Yes, you may get. You have a fair chances of getting a seat in IIT just wait for counseling procedure that is CCMT but I have doubt that whether this IIT offer this course in which you want to take the admission since many other IIT too offered this course but this IIT does't because last year also this IIT did not release the cutoff for power electronic. So I suggest you take just verify whether the course is available in the IIT or not. Also check other IIT like Delhi, Bombay this might offer seat in power electronic.