The earliest reference to the Blue Jackal can be found in Panchatantra, a collection of stories which depict animals in human situations (see anthropomorphism, Talking animals in fiction).
[citation needed] The story of the Blue Jackal known through oral transmission doesn't vary much from one part of India to another.
Although the creature is known variously as Chandru, Neelaakanth or Neela Gidhar (literally, Blue Jackal).
The Lion asked him who he was and the jackal seeing that he had now turned blue declared himself as Chandru - protector of all the animals in the jungle.
Chandru told the lion that he would only continue to protect the jungle if all the animals would give him food and shelter.