Baba ji has spread his Sufi thoughts through various books such as Piya Rung Kala , Kajal Kotha , etc . Baba ji has spread his Sufi thoughts through various books like Piya Rung Kala , Kajal Kotha etc . Baba ji has spread his various thoughts through Sufi books like Piya Rung Kala , Kajal Kotha etc .