Mobile telecommunication inside the city’s first underground metro, Aqua Line 3, remains down after the third-party infrastructure provider was switched off for failing to meet contract conditions. Any new network will take time to install, with no immediate relief in sight.

With the intent to provide cellular connectivity to all passengers, the Mumbai Metro Rail Corporation Limited (MMRCL), which operates Aqua Line 3, had invited bids to set up neutral or common infrastructure that could be used by any telecom operator.