Khala-yoga

Khala-yoga has eight types. It is formed by the exchange of rulers of the 1st, 2nd, 4th, 5th, 7th, 9th, 10th, and 11th houses with the lord of the 3rd bhava. This yoga brings disasters and poverty, periods of prosperity and needs alternate. The behavior of a person shows cyclicality: good disposition is followed by arrogance.

Shri Govind Swarup Agarwal - "Vedic Astrology"