The native is witty, softhearted, responsible. The person has the knowledge of math and astrology. He may be very artistic if Venus connects Mercury. If Rahu and Ketu connects then the person will be full of curiosity every time.
Mercury in various houses according to Vedic Astrology
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हिन्दी 
Sun
Moon
Mars
Venus
Mercury
Jupiter
Saturn
Rahu
Ketu