Excellent service from "Sai Venkateswara Power Solutions, Railway New Colony". I approached them to repair AMARON branded UPS which was not working. I got an on-time response from them and they sent 2 technicians by 3 pm. Technicians informed me that the battery needs to be changed. They gave me a good deal as well. They took my old UPS for Rs. 3000. They came by evening at 6 pm with spare parts and battery and all. They replaced it with the new one of Rs. 12500 and completed the work with 15 minutes. Totally I paid them Rs. 9500.