Reliable Water Purifier Repair and RO Service in Kolkata at Affordable Rates Access to pure drinking water is a basic necessity, especially for households in urban areas. In Kolkata, where water contamination is a concern, installing a water purifier has become critical. Most homes rely on RO (Reverse Osmosis) systems https://nexusarc763.vblogetin.com/42905741/the-truth-behind-the-ro-service-in-news