Dear Aspirant,

MS is an specialization course and you will be getting converged in your stream so you must choose it wisely.
First of all think as what in Electronics or Communication makes you mesmerized, it can be however both.

In Electronics it can be:

• Analog Electronics
• Digital Electronics
• Microprocessors
• Embedded Systems
• VLSI Technology, anything...

And in Communication it can be:

• Analog Communication
• Digital Communication
• Antenna and Wave propagation
• Radar communication
• Satellite communication, etc...

So, first of all choose your interest carefully.

Now, if we talk about the courses available, these will be:

1. Micro Electronics
2. Integrated Electronics & Circuits
3. VLSI Design Tool Technology
4. Communication Engineering
5. Telecommunication Tech & Management
6. Microwave Engineering
7. Nanotechnology
8. Computer Technology
9. Digital Signal Processing
10. Control & Automation
11. Optoelectronics & Optical Communication

Well, there may be plenty more but I have listed down the well ones here.

Also if getting a job in Electronic Sector is your sole priority then:

VLSI Design > Embedded Systems > DSP ( D igital Signal Processing )

Do checkout for the Universities offering them by clicking on the link below:

https://engineering.careers360.com/colleges/list-of-ms-in-electronics-and-communication-engineering-colleges-in-india

Hope this helps :)