Mumbai, Jan 11 (TIWN) After a successful war against coronavirus, the battle for Mumbai's development has begun and the state would strive for this in full earnest, Maharashtra Chief Minister Uddhav Thackeray said here on Monday.

The tunnels are expected to be ready by June 2022, a senior civic official said.

"CM Uddhav Balasaheb Thackeray launched 'Mavla', the biggest Tunnel Boring Machine (TBM) in India. This massive TBM will undertake tunnel boring work for the Mumbai Coastal Road Project beginning from Priyadarshini Park to the Princess Street flyover," the Chief Minister's Office (CMO) tweeted.