The accident took place on Man Singh Road in the wee hours of Tuesday.
The driver of the dumper tuck has been arrested by the Delhi Police.
The dumper first hit the divider and then went on crashing into the autos and pedestrians standing near the footpath.
A man approximately 42 years of age and a child have reportedly lost their lives in the incident.
Police have arrested the driver of the heavy vehicle.
Further details are awaited.
Meanwhile, in Seelampur are, two people died and three were injured in collapse of a four-storey building.