In the survey that assessed municipal areas for minimal open defecation and effective solid waste management, West Bengal has done exceptionally well, with 25 municipal areas in the state making it to the top 100 cities.
Halishahar was ranked 9th among cities while Kolkata was at rank 56, which was the best among the four metros. The list includes only Class I cities with a population of more than one lakh.
The ranking used three methodologies – primary data from the municipal bodies, field inspection and ground interaction with people.
The survey also assessed the status of septage management (disposal of sewage from septik tanks), waste water treatment, drinking water quality, surface quality of water bodies, and mortality due to water-borne diseases.