<h1>Mumbai tunnel network to ease congestion will create parallel underground roads and integrated transit ticketing and fare stability.</h1> Maharashtra announced a comprehensive underground tunnel network across Mumbai as a parallel road system to decongest arterial routes, complemented by Metro corridor expansion and a coastal barrier-free route. Named projects include Thane-Borivali, Mulund-Goregaon, Borivali-Goregaon, Worli-Shivdi connector, and a tunnel linking Atal Setu to Girgaon Chowpatty, with stated travel-speed and travel-time objectives. The programme pairs infrastructure works with multimodal integration: a Mumbai One app for a common ticket across Metro, suburban trains and buses, fare stability for second-class suburban travel, and progressive air-conditioning of services.