Hello Amrutha, 

electronic instrumentation is an course which is existing for a long time but not recognised by people from different streams. this is actually not a bad thing, this course is pretty multi disciplinary and helps to monitor and process control through instrumentation. To understand better, in our daily life every action is done automatically which means machine based, their designing comes under this stream.

There is no process without INSTRUMENTATION in all fields like food, chemical, leather, sugar, automobile and other industries.

There are greater opening in E&I stream for freshers also. draftsmen, surveyor, quality control, inspectors, etc are availabe for freshers also. But while studying try to be updated with the existing new things in stream to be in track with existing affairs. 

Hope my view helps you. 

It is similar to ECE. it majorly deals with designing and developing of instruments that are being used in industries.job oppurtunities for core instrumentation jobs are high these days and i think will stay the same in the upcoming years.Also there is a lot of oppurtunities for higher education and PSU jobs( think of GATE).so we can say that it is a nice branch to pursue engineering. i think it would be better if you try taking some other branch in NITR or join some other nit as the placements are not that great for this branch in that college.