Thirty companies have evinced interest in constructing twin tunnels for the underground Goregaon-Mulund Link Road that will pass below Sanjay Gandhi National Park (SGNP).

These companies include firms already involved in the construction of the Colaba-Seepz Metro-3 line, and some globally-known ones from China, Korea and Japan. The project worth around Rs 4,000 crore will be financed by the Brihanmumbai Municipal Corporation (BMC).  

The Goregaon-Mulund Link Road will be a 14 km long road, with a combination of tunnels and an elevated road and will connect western and eastern suburbs.

A part of the project will be the twin tunnels, measuring around 4.7 km and 4.6 km, that will pass below SGNP. The proposition has attracted criticism as SGNP is one of the biggest forest covers in India.

BMC had floated an expression of interest (EoI) in July 2019, for the tunnels, calling for suggestions from companies for tunnelling. The last day to submit EoI was 14 August 2019.

The authorities will float bids for technical qualification after gig through suggestions.