The SUV, speeding down the wrong lane on Golf Course Road, smashed into the IndiGo cab inside Sikanderpur underpass early Sunday morning.
The driver and the guard who were on the front seats were killed, while IndiGo pilot Suvarna Sripalli Gayatri, 30, was left critically injured.
The occupants of the SUV had escaped from the accident site.
Mohammad Sazid was arrested on Monday evening after he was discharged from a hospital where he had gone for treatment following the accident, said Ravinder Kumar, the spokesperson of the Gurgaon police.
The victims were taken to Neel Kanth Hospital where the driver, Vinod Yadav, and the security guard, Kishore Kumar, died of multiple injuries during treatment, a senior police officer said.
Ms Gayatri, who was in the rear seat, is being treated at Medanta Hospital in Gurgaon, the officer said. She is in a critical condition.
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