The incident took place at Pidhi village, coming under jurisdiction of Kumher police station.
At the time of the incident, 'Bhaat' ritual was going. As in Marwari culture, Bhaat is a post engagement ceremony in which bride's mother invites her brother for her daughter's marriage.
Several people were sitting on the eaves to watch the ceremony. Suddenly, the structure gave in and the people sitting under it got trapped, Assistant SP (Bhartpur rural) Dharmendra Singh told news agency PTI.
The victims were rushed to a nearby hospital where some of them were declared brought dead and some died during treatment.
Mr Singh informed, 8 of the 15 deceased, that included both men and women, have been admitted to the SMS Hospital in Jaipur.