The decomposed body of an unidentified woman was Wednesday found in the spare tyre compartment of a private school's bus here, police said.
The victim appeared to be in her early 30s and may have been killed two-three days ago, police said.
"For the last three days, the school bus was parked at a deserted spot near Gurgaon village in sector 5," said Kuldeep Kumar, chief of sector 5 police station.
Rajan Singh, the driver of the bus, lived in Gurgaon village and after school hours parked the vehicle there as a routine, he said.
The bus was parked at the spot, barely 200 metres from the police station, for three days at a stretch due to a string of holidays in the school, police said.
On Wednesday, the driver was taking the bus to school but it broke down on the way in sector 29. The driver while trying to locate the snag stumbled upon the body in the box.
The body has been sent for post-mortem and police are investigating the matter, they added.
"Only the post-mortem report will reveal how she was killed and whether she was sexually assaulted before her murder," Surender Pal Singh, deputy commissioner of police (west), said.