Mercury rules 9th and 12th house is in 3rd house in Sagittarius

As a Jyotish astrologer, I can tell you that having Mercury in the 3rd house in the Sagittarius sign can indicate several things about your personality.

Firstly, Mercury represents communication, intelligence, and wit. So having this planet in the 3rd house, which also represents communication, suggests that you are likely to be very expressive and articulate. You may enjoy engaging in debates or discussions and can easily convey your thoughts and ideas to others.

Secondly, the Sagittarius sign is associated with a love for learning and a thirst for knowledge. This suggests that you may have a keen interest in subjects related to philosophy, religion, or spirituality. You may be curious about the world around you and love to explore different cultures and belief systems.

Overall, this placement of Mercury in the 3rd house in Sagittarius sign suggests that you have a quick mind and a love for knowledge. You may excel in fields that require strong communication skills, such as teaching or writing. However, you may also need to guard against being too argumentative or opinionated at times.