Basically, Electronics & Communication Engineering deals with the electronic devices, circuits, communication equipment like transmitter, receiver, integrated circuits (IC), basic electronics, analog and digital transmission & reception of data, voice and video.
E&C engineers design and maintain satellites, creates advanced communication facilities and control it.
It has great opportunities in future like Software Analyst, Technical Director and many more.
If you really have interest in the electronic devices, transmitter and so on, then for sure, this field is for you.
Take your time and decide wisely.
Have bright future and yeah all the best for board exam