Prof. Amarnath's research centres around several innovations both with his students and by himself. The earliest innovative work was on hybrid bearings and devices for automatic generation of dies for Fresnel Lenses. His work on Mechanical Logic Devices has been extended to the type Synthesis of Mechanisms. Tasks demanded of mechanisms have been described using Boolean Algebra and translated into mechanical digital systems which are then refined. This procedure has been successfully used to evolve novel Knifeless Textile Dobbies and Circuit Breakers.