India, Nov. 6 -- The contractors overseeing construction of the building that collapsed in Old Delhi's Chawri Bazar on Thursday, killing at least two people, allegedly ignored warnings from workers about the poor quality of construction material and the structure's inability to support another concrete slab, according to the first information report (FIR) registered in the incident.

In his statement to the police, complainant Firoz, a 37-year-old construction worker from Bihar who lives in Mandawali and survived the collapse, alleged that the contractors were repeatedly alerted about the structural concerns but insisted that the work continue, saying that making the changes would increase construction costs.

"We had informed the contrac...