HMWSSB is preparing to supply treated sewage water across Hyderabad’s CURE area through its Green Water Tankers facility. The initiative builds on an earlier plan to expand sewage treatment, while 39 additional STPs have been proposed in the ORR area. Hyderabad: A blueprint envisioned during the previous BRS government by the then MA&UD Minister KT Rama Rao to make Hyderabad India's first city to achieve 100 per cent sewage treatment has now.