Manorama Yearbook. 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 Beats Surat and Vijayawada to Emerge as One of India's Cleanest Cities in Super Swachh League 2025-26 - The city was placed in the elite Super Swachh League, a special category for.