According to the police, BMW driver Rakesh, 28, was arrested. He seemed to be under the influence of alcohol.
Munni Data, 28, her husband Bitto Pal, 32, Uber cab driver Pradeep, 35, and Ram Chander, 60, the autorickshaw driver, were admitted to the AIIMS Trauma Centre, Additional Deputy Commissioner of Police Chinmoy Biswal said.
Munni Data and Bitto Pal had hired the cab from Noida to go to the Indira Gandhi International Airport.
At R.K. Puram in south Delhi, the BMW hit the cab, which collided with the autorickshaw.