theopenpress.in. Navi Mumbai has been named India's cleanest city in the Swachh Survekshan 2025-26, taking the top spot after Indore held the title for eight consecutive years before moving to the Mentor City. Navi Mumbai has been named India's cleanest city in Swachh Survekshan 2025-26, ending Indore's eight-year run, while Rewa and Rudrapur topped riverfront and Himalayan city categories.