The hybrid machining process is generally used for machining brittle as well as super hard materials. The combination of machining centres, namely diamond grinding and ultrasonic machining, leads to better surface finishing during machining performed by rotary ultrasonic mechanism. It is regarded as best suitable method for obtaining the surface quality of work-piece material. In this manuscript, the various Input machining parameters like vibration frequency, spindle speed and electronic ultrasonic power are critically analyzed. Electronically operated ultrasonic and rotary ultrasonic machining both play an important role to measure the output response variables as Material removal rate (MRR), Surface roughness (SF) and cutting forces(CF).