News Mumbai: Work on constructing the first-ever tunnel in Mumbai for the fully underground Metro 3 line began at the Naya Nagar site in Mahim on Friday, with two more tunnel boring machines (TBMs) lowered to dig towards Dadar. Naya Nagar is one of the seven ‘launching shafts’ from where tunnelling operations will be conducted.… Continue reading Mumbai Metro | MMRC begins tunnelling work for Metro 3 project at Naya Nagar.