Piya Rang Kala By Baba Muhammad Yahya Khan. “Piya Rang Kala” the novel by Mohammed Yahya Khan is the story of a Sheesh Nag (the king of cobras). It is said that this mythic name is so fascinating in its beauty and colours that one cannot see it constantly. It begins to grow black in its colour and its eyes become white as it grows. Then, it makes its path whitish where from it passes. When it grows young, it has the capability of hanging itself into the air. Any one who happens to watch it, is charmed. Sheesh Nag of a hundred years changes itself into a man. Then numberless stories are generated about it.