The Brihanmumbai Municipal Corporation (BMC) will spend Rs 12,013.41 crore on the construction and maintenance of the underground tunnels of the Goregaon Mulund Link Road (GMLR) including taxes. The estimated cost of constructing the project was Rs 6,271 crore, but Rs 6,602 crore will now be spent on building the tunnels as well as renting a casting yard and the disposal of debris.

Of the Rs 6,602, the BMC will spend Rs 6,301 crore on the actual construction work while Rs 132 crore will be spent on renting the casting yard—which will be 25 km away from the project site, an eco-sensitive zone. The disposal of debris accounts for Rs 169 crore. The civic body cleared the proposal to construct the two tunnels recently. “We are trying to start the work as soon as possible. The tunnels will be completed in five years,” an official told mid-day.