Power Plants, Heat Transfer, Fluid Mechanics, Engineering Thermodynamics, Solar Energy, Photovoltaics, Automotive Engineering, I. C Engines, Alternative fuels, Biodiesel, Renewable Energy Technologies, Solar Power System, Engine Emission and control, Solar Radiation, Energy Management, Supply chain management, aircraft design, Thermal Energy storage, Phase change materials, nano composites, HVAC cooling and heating load calculation, HAP, CFD, Matlab.