Dr. Sharma reveals a massive, highly specific Lal Kitab warning for marital harmony when the Rahu-Ketu axis afflicts the 7th house.
The 7th house is the house of marriage and partnership. Rahu and Ketu are explosive, separating energies. When they sit in the 7th house, the marriage is already highly sensitive and prone to sudden breaks or misunderstandings.
Dr. Sharma provides a critical modern remedy: after marriage, the wife must *not* change her maiden surname to the husband's surname. Changing the surname alters the numerological and energetic identity of the wife, triggering the explosive energy of Rahu/Ketu in the 7th house and destroying the domestic peace ("grahasth sukh"). Keeping her original identity keeps the malefic energy dormant.