As you want to get the details of career or jobs after B.Tech Electronics and Communication Engineering so here it is for you:

B.Tech. Electronic and Communication Engineering Employment Area

Indian Engineering Service (IES)
Indian Telephone Industries, BSNL / MTNL
Semiconductor, Chip Design-Industries (Motorola, IBM, HP, STM, Philips, IT etc)
Indian Oil Corporation Ltd. (HPCL / BPCL / IPCL)
Oil and Natural Gas Corporation Limited (ONGC)
Civil Aviation Department
Steel Authority of Indian Limited (SAIL)
Power Sector (NTPC / NHPC Ltd.)
Bharat Electronics Limited
Indian Railways
Indus tan Aeronautics Limited (ISRO)
Software Industries (ALL MNC’S) (HAL)
Teaching / Research
Government Sector

Some job titles:-
Service Engineer
Software Analyst
Technical Director
Field Test Engineer
Senior Sales Manager
Network Planning Engineer
Customer Support Engineer
Electronics and Communications Consultant
Research & Development Software Engineer

List of colleges of B.Tech ECE in India:
Rajagiri School of Engineering & Technology - Bachelor of Technology in Electronics & Communication Engineering
Ideal Institute of Technology, Ghaziabad - Bachelor of Technology in Electronics & Communication Engineering
Birsa Institute of Technology - Bachelor of Technology in Electronics and Communication Engineering
Kshatriya College of Engineering - Bachelor of Technology in Electronics and Communication Engineering
International Institute of Information Technology, Hyderabad (IIIT-H) - Bachelor of Technology in Electronics & Communication Engineering
VNR Vignana Jyothi Institute of Engineering and Technology - Bachelor of Technology in Electronics & Communication Engineering
Sridevi Women's Engineering College - Bachelor of Technology in Electronics & Communication Engineering
BSA College of Engineering and Technology - Bachelor of Technology in Electronics & Communication Engineering
St. Ann's College of Engineering & Technology - Bachelor Of Technology In Electronics & Communications Engineering
Kakinada Institute of Engineering & Technology - Bachelor of Technology In Electronics and Communication Engineering
National Institute of Technology, Kurukshetra - Bachelor of Technology in Electronics & Communication Engineering
The Icfai Institute of Science and Technology, Hyderabad - Bachelor of Technology in Electronics and Communication Engineering
Sri Vidyanikethan Engineering College, Chittoor - Bachelor of Technology in Electronics and Communication Engineering
Kamala Institute of Technology and Science - Bachelor of Technology in Electronics & Communications Engineering
Nagarjuna College of Engineering and Technology - Bachelor of Technology in Electronics & Communication Engineering
Inderprastha Engineering College - Bachelor of Technology in Electronics & Communication Engineering
Academy of Business and Engineering Sciences - Bachelor of Technology in Electronics & Communication Engineering
Jaypee Institute of Information Technology - Bachelor of Technology in Electronics & Communication Engineering
Swarnandhra College of Engineering & Technology - Bachelor of Technology in Electronics & Communication Engineering
Radha Govind Engineering College, Meerut - Bachelor of Technology in Electronics & Communication Engineering
Marudhar Engineering College - Bachelor of Technology in Electronics & Communication Engineering
Bhai Gurdas Institute of Engineering & Technology - Bachelor of Technology in Electronic and Communication Engineering
Padmasri Dr BV Raju Institute of Technology (BVRIT), Medak - Bachelor of Technology in Electronics & Communication Engineering
Motilal Nehru National Institute of Technology - Bachelor of Technology in Electronics & Communication Engineering
M. P. Nachimuthu M. Jaganathan Engineering College - Bachelor of Technology in Electronics & Communication Engineering
CVR College of Engineering - Bachelor of Technology in Electronics & Communication Engineering
St. Peter's University, Chennai - Bachelor of Technology in Electronic & Communication Engineering
Hindustan College of Science and Technology - Bachelor of Technology in Electronics & Communication Engineering
B.M.S Evening College Of Engineering - Bangalore - Bachelor of Technology in Electronics and Communication Engineering
RVR&JC College of Engineering - Bachelor of Technology in Electronics & Communication Engineering
Mahatma Gandhi Institute of Technology - Bachelor of Technology in Electronics & Communication Engineering
National Institute of Technology (NIT S) - Bachelor of Technology in Electronics and Communications Engineering
Invertis Institute of Engineering Technology - Bachelor of Technology in Electronics And Communication Engineering
Shankara Institute of Technology - Bachelor Of Technology In Electronics & Communication Engineering
Indira Gandhi Institute of Technology - B.Tech Electronics And Communication
JNTU College of Engineering - Bachelor of Technology in Electronics and Communications Engineering
Dr.K.N.Modi Foundation, Ghaziabad - Bachelor of Technology in Electronics & Communication Engineering
Lingaya's GVKS Institute of Management & Technology, Faridabad - Bachelor of Technology in Electronics & Communication Engineering
Indian Institute of Carpet Technology, Bhadohi - Bachelor of Technolgy in Electronics & Communication Engineering
G.Pulla Reddy Engineering College - Bachelor of Technology in Electronics & Communication Engineering
Maharaja Surajmal Institute of Technology - Bachelor of Technology in Electronics and Communication Engineering
St. Johns College of Engineering and Technology - Bachelor of Technology in Electronics & Communication Engineering
Dr .B.C. Roy Engineering College - Bachelor of Technology in Electronics & Communication Engineering
Institute of Technology & Management - Bachelor of Technology in Electronics & Communication Engineering
Sri Kottam Tulasi Reddy Memorial College of Engineering - Bachelor of Technology in Electronics & Communication Engineering
Nishitha College of Engineering and Technology - Bachelor of Technology in Electronics & Communications Engineering
LBS Institute of Technology for Women - Bachelor Of Technology In Electronics & Communication Engineering
L.D.College of Engineering, Ahmedabad - Bachelor of Technology in Electronics & Communication Engineering.
College of Engineering, Trivandrum, Thiruvananthapuram - Bachelor Of Technology In Electronics & Communication Engineering
School of Continuing and Distance Education, Jawaharlal Nehru Technological University - Bachelor of Technology In Electronics and Communication Engineering
Aurora's Engineering College - Bachelor of Technology in Electronics & Communication Engineering
Marian College of Engineering - Bachelor of Technology in Electronics & Communication Engineering
Birsa Institute of Technology - Bachelor of Technology in Electronics and Communication Engineering
Kandula Shreenivasa Reddy Memorial College of Engineering, Kadapa - Bachelor of Technology In Electronics & Communications Engineering
Shree Ganpati Institute of Technology (SGIT), Ghaziabad - Bachelor of Technology in Electronics & Communication Engineering
NBKR Institute of Science and Technology - Bachelor of Technology in Electronics and Communication Engineering
Thandra Paparaya Institute of Science and Technology - Kotavani Valasa - Bachelor of Technology in Electronics & Communication Engineering
Model Engineering College - Bachelor of Technology in Electronics & Communication Engineering
Bharat Institute of Technology, Meerut - Bachelor of Technology in Electronics & Communication Engineering
TRR College of Engineering (TRRCE), Medak - Bachelor Of Technology In Electronics & Communication Engineering
Swami Ramananda Tirtha Institute of Science Technology - Bachelor Of Technology In Electronics & Communication Engineering
Dayananda Sagar College of Engineering - Bachelor of Technology in Electronics & Communication Engineering
Baba Hira Singh Bhattal Institute of Engineering and Technology - Bachelor of Technology in Electronics & Communication Engineering
Maharishi Markandeshwar Engineering College - Bachelor of Technology in Electronics & Communication Engineering (Lateral Entry)
Vishveshwarya Institute of Engineering & Technology - Bachelor of Technology in Electronics & Communication Engineering
JSS Academy of Technical Education - Bachelor of Technology in Electronics and Communication Engineering
Vijay Institute of Technology & Science - Bachelor Of Technology In Electronics & Communication Engineering
IEC College of Engineering and Technology, Greater Noida - Bachelor of Technology in Electronics & Communication Engineering
CMR College of Engineering and Technology - Bachelor of Technology in Electronics & Communications Engineering
Dr.M.C.Saxena College of Engineering Technology - Lucknow - Bachelor of Technology in Electronics & Communication Engineering
College of Engineering, Trivandrum, Thiruvananthapuram - Bachelor of Technology in Electronics & Communication Engineering
Anupama College of Engineering, Gurgaon - Bachelor of Technology in Electronics and Communication Engineering
Toc H Institute of Science & Technology - Bachelor of Technology in Electronics & Communication Engineering
KIIT College of Engineering,Bhondsi - Bachelor of Technology in Electronics and Communication Engineering
Anil Neerukonda Institute of Technology and Sciences - Bachelor of Technology in Electronics & Communication Engineering
Anwarul-Uloom College of Engineering and Technology (AUCET) - Bachelor of Technology in Electronics & Communications Engineering
Chandigarh Engineering College - Bachelor of Technology in Electronics and Communication Engineering
Manipal Institute of Technology, Manipal (MIT M) - Bachelor of Technology in Electronics & Communication Engineering
Gurukul Kangri Vishwavidyalaya - Faculty of Engineering Technology - Bachelor of Technology in Electronics and Communication Engineering
Aligarh College of Engineering & Technology - Bachelor of Technology in Electronics and Communication Engineering
Vidya Vikas Institute of Technology - Bachelor of Technology in Electronic and Communication Engineering
J. K. Institute of Applied Physics Technology, University of Allahabad - Bachelor of Technology in Electronics & Communication Engineering
B.M.S Institute of Technology - Bachelor Of Technology In Electronics & Communication
Gokaraju Rangaraju Institute of Engineering & Technology - Bachelor of Technology in Electronics & Communications Engineering
Shri Mata Vaishno Devi University, Katra (SMVDU) - Bachelor of Technology in Electronics & Communication Engineering
Sant Longowal Institute of Engineering and Technology, Longowal - B.Tech Electronics and Communication Engineering
JNTUH College of Engineering - Bachelor of Technology in Electronics & Communications Engineering
Nagarjuna Institute of Technology & Sciences - Bachelor of Technology in Electronics & Communication Engineering
Visvesvaraya National Institute of Technology, Nagpur - Bachelor of Technology in Electronics & Communication Engineering
Vel Technological Engineering College, Chennai - Bachelor Of Engineering in Electronics & Communication Engineering
Dr. Kedar Nath Modi Institute of Engineering and Technology - Bachelor of Technology in Electronics & Communication Engineering
Swarna Bharathi Institute of Science & Technology - Bachelor of Technology in Electronics & Communication Engineering
Marwar Engineering College Research Center (MECRC) Jodhpur - Bachelor of Technology in Electronics & Communication Engineering
TKR College of Engineering and Technology - Bachelor of Technology in Electronics & Communication Engineering
Yagyavalkya Institute of Technology - Bachelor of Technology In Electronics & Communication Engineering