Hello dear,
Btech from electronics and communication stream is a course of 4 years which a student can pursue if he or she have passed his 10+2 with physics, chemistry and mathematics as their main subjects
It basically deals with the study of design ,analysis and application of electronics and communication circuits
Some top Institute referring this course are
1.IIT delhi
2.the neotia college, kolkata
3.Chandigarh University
4. IIT kanpur
5.BITS Hyderabad
The fee of this  course ranging  from 1 lakh to 4 lacs approximately. This course make student ready to develop their own electronic devices.
This course emphasize on telecommunications ,energy and electronic sectors
Good luck for your new journey!

Hi student,

The Electronics & Communication Engineering branch involves the transmission of information across channels. Being an Electronics Engineer you can work on designing equipment such as routers, switches, multiplexers and electronic switching systems, copper telephone facilities and fiber optics.

This branch majorly deals with the veryday devices such as transistors, integrated circuits and printed circuit boards (PCBs) which can be used in computers, MP3 players, cell phones, television, etc.

Its study involves Electromagnetics, Electronics, Electrical circuits and machines, Signals and systems, Digital Signal Processing, Microprocessors and Embedded systems, Communication systems, Optical systems, VLSI.

You can work as Electronics Engineer, Electronics Design Engineer, Telecommunications Engineering Specialist, Electronics Test Engineer, Electromechanical Engineering Technologist after doing this course.

You may refer to this article for more information about Electronics and Communication Engineering.

I hope this information helps you.

Good Luck!