Hey Rohit

Applied Electronics & Instrumentation Engineering is an advanced branch of engineering which deals with the application of existing or known scientific knowledge in Electronics to the practical applications in measurements and control of any processes and calibration of these instruments. Another, 

Instrumentation is defined as the art and science of measurement and control of the process variables within a production or manufacturing area. The process variables used in industries are Level, Pressure, Temperature, Humidity, Flow, pH, Force, Speed etc. B.Tech. in Applied Electronics and Instrumentation is a 4- year undergraduate course that can be studied as a separate branch or along with electronics engineering. ... Instrumentation Engineers also decide the type of instruments needed for ensuring better quality and efficiency of the end products. In The End  It Is On You , In Which Branch You Have Interes.

 I Hope It Helps 

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