Considered one of the most concerning formation of planets in a chart, there are twelve variation of this dosha. This dosha (affliction) is present when all of the planets are hemmed between Rahu and Ketu. It is believed to form when you have misused your energy, wasted it in previous lives or killed a snake. It can lead to a difficult life peppered with illnesses, financial issues, and impediments; generally presenting challenges throughout life. There are rare occasions where it can actually manifest in an amazing way such as Sachin Tendulkar, Dheerubhai Ambani and Abraham Lincoln.