Delhi decided to drop water supply by 25 per cent and shuts 3 WTPS July 14, 2023 | Key Segments, News & Developments, Wastewater, Water Supply The government of Delhi has decided to reduce the water supply in Delhi by 25 per cent along with the closure of three water treatment plants due to the rising level of the Yamuna river on July 13, 2023. This content is restricted.