Today I bought Orient Ultron heat and cool DC inverter for 60K from Metro Isl. They will deliver free of charge at home. They also gave me numbers of installers and said that they will stamp the warranty card after installing the unit and checking that everything was working fine. They charge 1,800 rs for Inverter installation and 1200 for normal AC.
Anyone has experience with Metro installer or should I call Orient to send installers.
I chose 1.5 because it is on first floor room and the temperature during recent heatwave shot up to 36 degrees C inside the room at late night.