Mars is the natural lord of third house. Third house stands for courage, communication and siblings. Ketu in third house is a welcome scenario. Ketu in third house does far less damage compared to being placed in quadrant houses, trine houses or hell houses. There can be problems with communication and siblings. Ketu in third house implies Rahu is in ninth house. So native has a lot of opportunities to travel and settle in foreign lands.

     Problem with brothers and sisters are a possible scenario due to Ketu in third house. Chances of fights and court cases against siblings are not ruled out. Ketu has zero communication skills. It is almost impossible for a person to communicate effectively with others due to Ketu especially in a meeting or group project.

     Ketu much like Mars is angry and frustrated. Generally Ketu encourages anti-social behavior in a person. In the third house Ketu encourages an individual to raise his voice against what they deem is wrong with society. Such people are constantly at loggerheads with others. But if there is a planet like Mercury or Moon along with it than they can actually bring about genuine change in the society via their reasoning skills and caring attitude. Ketu with Mars or Sun maybe a catastrophe cause both are fiery and egoistic planets. Ketu with Jupiter is also great as Jupiter calms Ketu via its wisdom. Ketu with Venus is less desirable but it does produce good results for those wishing to settle abroad. Ketu with Saturn in third house is bad for equation with children and can produce financial or personal losses.

     Third house is still a good placement for Ketu. Avoiding fights with siblings especially over property matters is advised. Avoiding marketing and sales job solves most of communication problems that Ketu in third house can bring. If there is a need to communicate at work place or in an education project than keep the talk sweet and simple. Speak Saraswati Vandana mantra everyday to improve speech and communication.