The approximately 1-km-long and 7.5-metre-wide underground route is aimed at providing easy access to the proposed landscape garden spread across around 300 acres along the coastal road project as well as the Worli Promenade

In an official statement issued from the mayor's desk on Wednesday, the BMC said that the expenditure related to handling the social media of the Mayor's Office is being borne by the organisation appointed to manage social media for the entire municipal corporation