Bought a 25L geyser from an electrical shop with free installation voucher. Called the customer care almost 10 times and received a installation person contact. All the people whose number is shared with us told my place doesn't come under their area. Finally went with paid installation.
A.O Smith is doing better with respect to service though they charge little high for the product
Another bad experience is bought a Crompton pedestal fan that makes too much noise even in lower speed.