On 31 March 2016, a 150 m (490 ft) steel span of the under-construction Vivekananda Road flyover in the Girish Park neighbourhood of Kolkata, India, collapsed.

[3][7] The National Disaster Response Force (NDRF) worked in relief operations with police and other security personnel.

[2] Sixty-two families living in buildings near the accident site were asked to vacate temporarily for the safe removal of collapsed debris.

[citation needed] Anandapran Gupta, former head of the department of civil engineering at IIT Kharagpur stated that his investigating committee found defects in multiple aspects of the flyover construction including design, construction, raw materials and supervision.

[12] Biranchi Acharya, an experienced construction professional, claimed that the main cause was the failure of a pier cap which brought down two spans supported over it.

[13] The Chief Minister of West Bengal, Mamata Banerjee, rushed to oversee the post-crash relief and rescue operation, and made a statement accusing the previous left-wing government for the disaster.