<h1>SOP for sewage treatment plants to standardise operations and guide long-term river-cleaning and water infrastructure planning.</h1> A directive requires development of a standard operating procedure for sewage treatment plants-setting standards for quality, maintenance and discharge and sharing that SOP with other states-while planning river restoration, drinking water and drainage with a twenty-year vision. Operational measures include strengthening the urban water utility by filling vacancies, improving water distribution efficiency and preventing pipeline leakage, adopting advanced desilting technology, constructing decentralised STPs and upgrading existing plants to stop untreated sewage reaching the river.