A father son-duo was arrested on Monday for allegedly running away with a Mercedes Benz car worth Rs 40 lakh, after asking for a test drive at a showroom in west Delhi's Rajouri Garden last month. Police said, the duo — Anil Anand (54) and his 23-year-old son Sahil Anand — went for a test drive and did not return. The accused are residents of Gurgaon. Complainant Deepak Kumar, who works as a sales manager of T&T Motors Ltd in Rajouri Garden, said that on May 6, a customer, along with two others, met him to purchase a Mercedes Benz car.

"Kumar said that the trio took keys from him on the pretext of going for a test drive. After waiting for hours and sending teams after them, when the showroom authorities failed to trace the car, Kumar got a complaint registered," said Surender Kumar, DCP southwest.

On Monday, a tip-off was received that both the accused would pass from Gurgaon in the stolen car.

"A trap was laid and both were spotted coming in the same car with the registration number changed. They were arrested," Kumar said.