India, Nov. 10 -- The Mumbai Metropolitan Region Development Authority (MMRDA) is working on establishing a 'third mode of urban mobility' in the city via creating underground tunnel corridors spanning 70 km at an estimated cost of Rs.1.05 lakh crore. The first phase of this project, spanning 16 km, will link Worli with terminal two of the Chhatrapati Shivaji Maharaj International Airport (CSMIA), as reported by HT on November 5.

The tunnels will complement two existing modes of mobility - railway lines and roads - and ease traffic snarls and congestion, officials said.

The MMRDA, on September 30, approved the appointment of a consultant to undertake a techno-economic feasibility study and prepare a detailed project report on the propos...