material which is needed you have to buy or you can let us know about that.
Rs. 400 it is just a labour charge
House wiring or upgrade
charges will be according the to field work.
single inverter installation
wiring is different. Rs 800/- just for installation charge
Filler servicing & cleaning/washing
Charge will be per points.
Rs. 800 applied only for Geysar installation extra charge will be according to the points wise