The 3rd house represents communication, courage, and siblings. Ketu is the planet of roots, detachment, and the past.
When Ketu sits in the 3rd house, Dr. Sharma provides two golden rules for success: 1. Communication: Never try to fake an accent or act overly sophisticated. Speak in your natural, native, "desi" dialect. Staying connected to your roots keeps Ketu positive. 2. Siblings: Never compare your bank balance with your brothers' ("daulat sang na tola kar"). Ketu hates jealousy and comparison. If you become jealous of your siblings' success, Ketu will instantly destroy your own courage and wealth.