Mumbai municipal commissioner said by 2050, a major portion of Nariman Point and state secretariat Mantralaya, will go under water due to the rising sea level
The massive project will involve digging a kilometre-long tunnel under the Arabian Sea - a first for India
The coastal road project is one of the many infrastructure projects underway in Mumbai to decongest roads and other transport systems
The proposed coastal road project will would connect Marine Drive area in south Mumbai to suburban Borivali in the north
Rs 8,500-cr project is part of the Rs 60,000-cr transport infra projects being undertaken by the state govt