Electronics Engineering

Check the link below for detailed syllabus of ECE:
http://www.wbut.ac.in/syllabus/Engineering_Syllabus_of_First_Year_EE,ECE,PWE,AEIE,EEE,IC,Apparel_2007.pdf

The telecom faculty is strict. Otherwise the subjects are almost the same in electronics and instrumentation except for few in higher semesters.

It depends on your passion and interests.
In India, there is not much scope for Biomedical Engineering. The few colleges which offer Biomedical Engineering, don't have good facilities or advanced equipment.
On the other hand, electrical engineering is an evergreen field of engineering. Jobs are plenty and is going to be in the foreseeable future.
Electronics engineering companies in India are few so most electronics engineers end up being software engineers. I don't recommend Electronics engineering to you unless you are 100% sure that you love semiconductors, diodes and transistors.

placement in this branch is very bad even from good college

Engineering @IILM Greater Noida
IILM - College of Engineering and Technology , Greater Noida is standing tall since 2002 working in the field of Biotechnology, Computer Science, Mechanical,Automobile and Electronics and Communication. Every branch opens up multiple placement opportunities
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Middlesex is one of London's reputed university, the programs offered in the other campuses are co-ordinated by the main campus. Remember there is no placement, the university will assist you with job hunting. The Careers and Employability Service offers students a range of support both while they are studying and after they have graduated. The university on the whole have good track record and have industrial tie-ups.