Reliable Water Purifier Repair and RO Service in Kolkata at Affordable Rates Access to safe drinking water is a basic necessity, especially for households in urban areas. In Kolkata, where water quality can vary, owning a water purifier has become a must. Most homes depend on RO (Reverse Osmosis) systems https://newsdirectory129.newsbloger.com/37765844/getting-my-ro-service-in-kolkata-to-work-and-getting-started-with