Four of the injured students were rushed to Jaipur while eleven were moved to Dadu Hospital in Phulera, police said.
The bus, that belonged to Maan Shakambari Senior Secondary School in Korsheena village, was on its way from Nayanko-ki-Dhani to Korsheena when it overturned around 9:30 am today, they said.
The driver fled the scene after the mishap, police said.
It is suspected that the vehicle had a steering problem that might have caused the accident, they added.