The 4th house rules peace of mind, the mother, and domestic happiness. When Ketu sits here, it creates deep emotional unrest, detachment from the mother, and a chaotic home environment.
Dr. Sharma provides a powerful, two-step Lal Kitab remedy to calm this afflicted Ketu. First, the native must apply yellow sandalwood paste ("peeli chandan") behind their ears. Yellow sandalwood represents Jupiter (wisdom and peace), and applying it to the ears (ruled by Ketu) soothes the restless energy.
Second, they must actively seek the blessings of an elderly, wise Brahmin or priest ("bade buzurg brahmin"). This act of humility and respect activates Jupiter's grace, neutralizing Ketu's destructive domestic effects.