KWSB OTS is a free Android application developed by KWSB under the Utilities & Tools category. The app provides an efficient solution for water tanker requests in Karachi, where the shortage of water supply has made the dependency on water tanker services a necessity.

The app acts as a technology platform that connects water tanker consumers and hydrant staff, making the process of requesting a water tanker simple and hassle-free. Through the app, residents of Karachi can register a request for a water tanker, which is then forwarded to the concerned hydrant. The consumer is informed about the status of their request through SMS, along with the tanker's driver contact information and the closure of the request.

Overall, KWSB OTS is a practical and user-friendly app that provides a convenient solution for water tanker requests in Karachi.