Delhi building collapse: 2 labourers killed, several feared trapped in Chawri Bazar

A four-storey building under construction collapsed in central Delhi’s Chawri Bazar around 9.30am on Thursday. Its third floor gave way while workers were laying a lintel. The collapse killed two labourers and injured several others. It mattered because people were still believed to be buried, and nearby buildings shook during the failure.

Locals said about 15 people were working at the site. Delhi Fire Service officials said seven people had been pulled from the rubble, but two later died from their injuries. Workers and neighbours described loud bangs, shaking homes, and rescue attempts using ropes. One labourer survived by holding onto a pillar.

Delhi Police, the NDRF, Delhi Fire Service, and MCD continued searching for missing people. Police registered an FIR against owner Samiullah and contractors. MCD suspended an assistant and a junior engineer pending inquiry. The collapse was Delhi’s fourth major building collapse in three months.

A lintel is a horizontal beam that spans an opening, such as a doorway or window, and transfers weight toward the supports at its sides. In a building under construction, it helps carry masonry or other loads above that opening. Its correct design, placement, and support matter because a weak or unfinished lintel can create a dangerous point in the structure.

The article says the building’s third floor gave way while workers were laying the lintel. Officials and residents said this brought down the building. Neighbours also alleged that workers allowed only two days for the lintel to strengthen before starting the next floor. The article does not establish that the lintel alone caused the collapse.

The incident shows why construction stages must be checked before more weight is added. Materials, supports, curing time, and the connection between floors all need proper supervision. Engineers must confirm that the structure is ready for continued work. The inquiry may clarify what failed and whether safety rules were ignored.

The reported scale was about 15 workers at the construction site when the building collapsed around 9.30am. That estimate came from local residents. The number mattered because rescuers had to determine how many workers might still be buried after the collapse and contact their families.

Delhi Fire Service officials said seven people had been pulled from the rubble. Two of those rescued later died from their injuries. The article identifies the deceased as Kishori, 40, and Sanjeet, 45. Injured workers included Sahdev Chaudhary, 25, and Firoz, 37. Other workers, including Pankaj, could not immediately be contacted.

The article does not give a final confirmed count of people trapped or a complete list of everyone at the site. Delhi Police, the NDRF, Delhi Fire Service, and MCD continued searching. Families waited for news, showing why early worker registers, reliable headcounts, and fast communication are important during construction emergencies.

A collapsing structure releases heavy materials suddenly. Workers may be buried, struck, or seriously injured. Nearby residents can also be hurt if walls or floors fall outward. The failure can damage adjoining buildings, block narrow lanes, and make rescue work more dangerous. In Chawri Bazar, two labourers died, several were injured, and people were still feared trapped.

Residents heard two loud bangs and said neighbouring buildings began shaking. One injured labourer ran from the site. Another reportedly survived by holding onto a pillar before neighbours pulled him to an adjacent house with ropes. The building stood opposite a mosque, raising concern that a collapse during prayers could have caused many more casualties.

The consequences continue after the initial fall. Families may not know whether workers are safe, while rescuers must search unstable rubble. Delhi Police, the NDRF, Delhi Fire Service, and MCD remained at the site. The incident underlines the need to secure surrounding structures, control access, and inspect construction before work continues.

Construction safety depends on the building owner and contractors following approved plans, using suitable materials, and providing safe working conditions. Engineers and supervisors must check the design and progress. Regulators such as MCD must inspect construction and respond to complaints. Responsibility can overlap, so an investigation is needed before assigning final blame.

Police registered an FIR under Section 105 BNS against owner Samiullah and the contractors. A senior police officer said police had alerted MCD about unauthorised construction nearly five months earlier. MCD said it had inspected the building and found repair work, but received no later complaint about fresh construction or demolition.

MCD suspended an assistant and a junior engineer for prima facie severe dereliction of duty, pending further inquiry. Police also examined whether construction quality was poor and whether more floors were added onto a weak foundation. The investigations are intended to establish who approved, carried out, supervised, or failed to stop unsafe work.

A building must transfer the weight of its floors safely into the ground. If the foundation is weak, overloaded, or poorly built, the supports may shift or fail. Poor-quality materials can reduce strength. Unauthorised changes may add floors or alter walls without checking the original design. Fast construction can also leave concrete or connections without enough time to become strong.

Police sources said the building was not constructed properly and that construction material might have been poor. They said more floors were being added, while the foundation may not have been strong enough. Locals alleged that three floors appeared in just over a month. A neighbour claimed workers waited only two days for the lintel to strengthen before beginning the next floor.

These details are reported allegations or preliminary concerns, not a final technical finding. The building owner, contractors, and MCD officials were investigated. Engineers and authorities will need to determine whether unauthorised work, materials, foundation capacity, rushed sequencing, or several factors caused the collapse. The findings could guide enforcement and future inspections.

Engineers begin by estimating the weight of floors, walls, occupants, and equipment, along with forces such as wind. They study the ground and select a foundation that can spread those loads without excessive settlement. Columns, beams, slabs, walls, and connections are then designed as one load path. Each part must have enough strength and stability, with safety margins.

During construction, engineers inspect reinforcement, concrete, dimensions, connections, and the sequence of work. They check that foundations and lower floors can carry the planned upper floors. Materials must meet specifications, and temporary supports may be needed while concrete gains strength. These checks are especially important when an existing structure is altered or extra floors are proposed.

The article does not provide the building’s engineering plans or a technical cause. Police sources nevertheless questioned its foundation and construction materials. The investigation should establish what was designed, what was built, and whether work followed approvals. Those findings can determine corrective action and help prevent another collapse.