Chatussagara yogam is formed when all the kendras are fully occupied. When 1,4,7,10 (kendram/kendra) positions are all occupied by planets chatussagara yogam happens.
A person with chatussagara yogam in his horoscope will have the following effects and benefits :
1) The person will earn good reputation
2) He will lead a life equivalent to a ruler
3) He will lead a long prosperous life
4) He will be blessed with good children
5) He will have good health
6) He will have great name and fame
If benefics are well positioned he will lead a life equivalent to that of a ruler. This is a powerful raja yogam in the horoscope chart of a person.