Nirmal Yogi, a Class XII student and a resident of Sawai Madhopur district, last night hanged himself from the fan using a towel, police said.
The body was sent to a hospital for postmortem this morning, police said, adding no suicide note was found in the room.
A probe has been launched in the matter to ascertain why he took the extreme step.
In the wake of increasing cases of suicides by students, Rajasthan Governor Kalyan Singh had recently said a body formed to regulate coaching institutes. "The body should also decide the admission procedure to these institutes and direct them to reduce the pressure on students," he had said.