mr.ankit instrumentation is a branch of science which measure, moniter, analys and control the physical parameters. generally flow, temperature, pressure and level.
scope of instrumentation in india in great but it's all upto you. after passout you have many profession where you can work on. basically teacher, designing engineer, maintainace engineer, project engineer and so on. about salary it's all depends on your experience, skills and knowledge of your engineering. thank you !