Wikipedia
Gajra
A gajra is a flower garland which women in South Asia wear during festive occasions, weddings or as part of everyday traditional attire. They are made usually of varies types of jasmine flowers but rose, crossandra and barleria are also widely used in gajras. It can be worn both on the bun and with the braid coiling. Women in South Asia usually wear them with traditional attire.
The gajra is an ornament that is purely meant to decorate a hairstyle and does not generally aid in holding a bun in place. Gajra also refers to type of pearl workmanship done on jewelry in south asia.