In Vedic astrology, Rahu and Ketu are always exactly 180 degrees apart. If Ketu is in the 12th house, Rahu is automatically in the 6th house. Dr. Sharma explains the toxic behavioral loop this axis creates.
Ketu in the 12th makes a person incredibly stingy and miserly ("kanjoosi ka jhanda"). Rahu in the 6th makes them highly manipulative, relying on flattery and sycophancy ("chaploosi ka jhanda") to get their work done.
Dr. Sharma warns that if either of these planets becomes afflicted (due to bad karma or transits), this combination will completely destroy the native's life ("phaad deta hai"). They will lose their wealth due to their miserliness and lose their respect due to their fake flattery.