We extend retrofit solution for hydro turbines for actuation of guide vane / wicket gate control. As a part of retrofit, we replace the existing hydro mechanical cabinet and provide new Valve Table Assembly (VTA) with proportional valves and directional valves as per control scheme. In many of such cases, we retain the existing OPU and pressure vessels and replace only HMC into VTA. However, for some specific cases we do replace the entire system and provide new OPU, HMC and pressure vessels.