I have bought an online UPS from Volta to solve my power shortage problem. They are the online UPS Mumbai manufacturer and they always claim to provide the best product to their customers. But I have a very bad experience with them. After few months of purchasing, my device failed to perform and I called the customer care to resolve my problem. I have waited for two months, but they showed no concern to my problem. At last, I had consulted with the local vendors to fix my problem. I am highly disappointed with their services.