As you want to get the details of difference between Electronics and Communication Engineering & Electronics and Telecommunication Engineering so here is the information of the same for you:

Electronics and Communication Engineering is an engineering discipline where non-linear and active electrical components such as electron tubes, and semiconductor devices, especially transistors, diodes and integrated circuits, are utilized to design electronic circuits, devices and systems, typically also including passive electrical components and based on printed circuit boards.

Telecommunications engineering is a major field within electronic engineering.

The work ranges from basic circuit design to strategic mass developments.

A telecommunication engineer is responsible for designing and overseeing the installation of telecommunications equipment and facilities