Question: why kaal sarp yog is formed?
Answer: Kaal Sarp dosh afflicts a person when all the seven planets occur in between Rahu and Ketu. ... In simple sense Kalsarp Dosh Nivaran is formed when all the planets are situated between Rahu & Ketu. When all the planets come between Rahu and Ketu i.e., the moon's north node and the moon's south node Kalsarp Yog is formed.