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"The pace of urban expansion has far exceeded the evolution of supporting infrastructure, particularly in water and drainage systems," says Dikshu Kukreja, an architect and urban planner based in Delhi.

They advised city residents to ensure their properties were free from holes, vents were not damaged or missing and drainage systems were in good working order.

One photo showed a crew member holding a drainage pipe completely stuffed with what appeared to be rags.

The ventilation, sewage and drainage systems had been the source of the problems.

It says the severity of wastewater and drainage development constraints will increase as a result.