https://en.m.wikipedia.org/wiki/Karaga_(festival)
The rituals have their origin in the Mahabharata, particularly in the vastrakshepa (stripping) of Draupadi, the exile of the Pandavas and the death of Draupadi's sons at the hands of Ashwathama. After all these trials and tribulations, she emerged as a symbol of strong and ideal womanhood
The celebration of Karaga festival in Karnataka can be traced back to over five centuries. It is believed that the festival originated in the Tigala community, a Tamil-speaking community of gardeners in Southern Karnataka. The Tigala community has been carrying forward the tradition of the festival for several centuries.
The origin of the Tigala community is not clear. Members of this community call themselves Vanihikula Kshatriyas. Some members claim that they are descendents of Veerakumars, the members of a mythological army who had helped Draupadi in her fight against a demon. Some believe that the origin of the community can be traced back to the lions of Angirasa, the sage whose offsprings founded most of the dynasties that had ruled over South India. Some others believe that the Tigalas are descendents of Agani, the Goddess of fire as per the Hindu mythology.
According to Puranas (the sacred scriptures of Hinduism), Draupadi is considered to be the embodiment of an ideal woman. The Tigalas worship Adishakti Draupadi as their community deity. The festival is celebrated in honour of Draupadi