Ketu is in 3rd house in Aries

As a Jyotish astrologer, I can tell you that Ketu in the 3rd house in Aries sign can indicate a person who is independent and self-reliant. This placement can make one courageous and quick-witted, but at times they may suffer from a lack of focus and may need to develop discipline to reach their goals.

As the 3rd house represents communication, siblings, and short journeys, Ketu's influence here may bring a unconventional approach to communication, and siblings may play an interesting role in the person's life. This placement can also indicate a desire to travel and explore new places.

Overall, this placement of Ketu can bring a unique perspective to the person's communication style and can push them to explore their individuality, but they must be careful to balance their independent nature with discipline to reach their goals. It is important to consider the placement of other planets in the birth chart to get a complete understanding of how this influence will play out in an individual's life.