Mumbai's first metro line is no stranger to controversy with previous accidents during construction in the past.

On Tuesday, 5 fire engines, 4 rescue vans and 2 ambulances were rushed to the the spot near Hotel Leela at Andheri where several were feared injured as a slab of the under-construction Metro rail line that links Andheri to Ghatkopar came crashing down.

However, Mumbai Metro is no stranger to mishaps. Here are previous instances of accidents on the metro line.

2008: Pile rig collapses on autorickshaw, killing one

In May 2008, a person was killed and another was seriously injured after a pile rig at a Mumbai Metro Rail construction site in Andheri (West) collapsed on an autorickshaw, an Indian Express report stated.

An inquiry into the mishap at the Metro construction site at Saki Naka, where scaffolding had collapsed, found the civil contractor, Simplex Infrastructure, at fault.

The committee set up by Mumbai Metropolitan Region Development Authority, the nodal agency for Mumbai Metro Rail Project, too had similar observations, according to an Indian Express report.

2009: Four injured after steel reinforcement cage collapses

In 2009, the near-collapse of a steel reinforcement cage and temporary scaffolding for a concrete pillar in Andheri (East) left four workers injured, according to a Times of India report.

A case of negligence had been registered against the site engineer and the contractor working for Simplex Construction Company.

2012: Crane crashes into hospital, no one injured



In April this year part of a 400-tonne crane being used for work on the metro line, veered off the truck carrier and crashed on a portion of the Sarvodaya Hospital in Ghatkopar, the Mumbai Mirror reported.

Luckily the building was empty at the time of the incident and no injuries were reported.