The native will be argumentative and rude. He will many diseases. He will lose his reputation in the market. If Rahu joins any malefic planet in the 5th, 8th, or 12th house then the person can face mental illness.
Rahu in various houses according to Vedic Astrology
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हिन्दी 
Sun
Moon
Mars
Venus
Mercury
Jupiter
Saturn
Rahu
Ketu