As you want to get the details of career options after B.Tech in Electronics and Communication Engineering so here is the information of the same for you:

Some of the areas where graduates of Electronics and Communication can get good jobs are given below:

Hardware Manufacturing
Home Appliance and VLSI design
Power sector
Software Engineering/IT
Telecommunication

Private Sector Jobs after B.Tech in Electronics and Communication:
It is possible for students to get jobs such as:

ASIC Design Engineer
ASIC Engineer Trainee
Business Analyst, IT
Developer
Jr. Embedded Engineer
Jr. Software Engineer (Trainee)
Network Support Engineer
Programmer
Software Engineer -.Net
Test / Quality Assurance (QA) Engineer (Computer Software)

Government Sector Jobs after B.Tech in Electronics and Communication:
The fields where they can join are:

Civil services
Defense
Indian Railways
Indian Air Force and many more
BSNL
Doordarshan (Prasarbharthi), etc
VSSC/ISRO