ਪਾਪ ਦੇ ਖੱਟੀ (Paap De Khatti) Book – ਨਾਨਕ ਸਿੰਘ" " , , , , , " " , "Paap De Khatti" by Nanak Singh is one of the most profound, emotional and spiritually intense Punjabi novels that deeply explores the bitter fruits of sin, pain of guilt, yearning for repentance, eternity of love, family conflicts, and spiritual liberation with immense depth and sensitivity. The title "Paap De Khatti" is a powerful metaphor symbolizing the sour consequences and spiritual punishment that come from sinful actions.