The Blue Jackal is a story known throughout the Indian sub-continent.
The story
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 most common version is told like this:
References
The Blue Jackal Wikipedia(Text) CC BY-SA