Keralas or Udra Keralas are a mythical dynasty mentioned in Sanskrit epics of ancient India. In Mahabharata, the Keralas rule over a kingdom which took part in the Kurukshetra War on the side of the Pandavas. According the Puranas, the navigators and survivors of the Yadavas of Dwaraka also settled in Kerala later, resulting in the cult of Krishna worship. And some remnants of the Sinhalas of Sri Lanka and of the Naga culture are also found here.