Electronics Engineering

If we talk in terms of placements and companies, then best specializations will be:
1. VLSI and Microelectronics -: Most of the industrial jobs and research sectors of electronics recruit from this branch.
2. Communication -: For telecom sector.
3. Signal Processing -: If you like mathematics, then this branch would be ideal for you. You can also opt for M.Tech in CSE, the choice is yours. Regards.

Hello Purushottam,
Yes, you can take admission in any B.Tech Engineering course after your Diploma. Other is no such type of compulsion to take admission in the same stream.

Please check for your eligibility to apply for this course from the criteria mentioned below. Eligibility criteria for B.Tech in electronics & telecommunication engineering is mentioned below:
For UG: Candidates must have passed 10+2 with the minimum qualifying marks in aggregate with Physics, Chemistry, and Mathematics as core subjects. Independent entrance tests are also held by the various state, central, and private universities which mostly require 50% as the prerequisite to appear for the test. Regards.

Yes, you can do projects here. There are many clubs and technical societies that do such kind of projects: ANANT working on satellite, ACYUT and Robocon working on robotics, BAJA designing and making sports car.
Startup culture also supports lot of initiatives. There is entrepreneurship cell here.
Such kind of initiatives is engaged here.

For B.Ed, you must have completed B.A./B.Sc./B.Com. (with any two pedagogical subjects at school level as per the requirements of the course) with minimum 50% marks from a recognized university.