The accused, Mukesh Gurjar, has been arrested, police said, adding that he worked at a placement agency.
Gurjar, who was known to the woman, had promised her with a teaching job in Jaipur.
When the woman came to the city, he called her last evening to a hotel to introduce her to a "college's boss" and allegedly raped her, police said.
The woman immediately went to Pratapnagar police station and filed a complaint after which police arrested the accused from Malviya Nagar area.