The Greater Hyderabad Municipal Corporation (GHMC) has been awarded Best Capital City in the Solid Waste Management in the Swachh Survekshan 2018 rankings. Swachh Survekshan was launched by the Ministry of Housing and Urban Affairs (MoHUA) under Swachh Bharat Mission (Urban). The Swachh Survekashan survey ranks cities on various sanitation parameters. The GHMC was also at the 27th place among 4,041 cities. The GHMC said that as a part of the Swachh Survekshan 2019, maintaining the timing of toilets, i.e., from 4 a.m. to 10 p.m. and proper signage will be an important parameter. As a part of this, the GHMC has requested the Hyderabad Metro Rail to ensure that public toilets in all metro corridors are open from 4 a.m. to 10 p.m.