Saturn the planet is always known for its wicked nature. Saturn though a malefic planet gives rise to this powerful sasa yogam. We know that 1,4,7,10 houses represent kendra/kendram. When saturn occupies a kendram and it happens to be his own houses (Makaram(capricorn), Kumbham(aquarius)), exaltation sign (libra) sasa yogam is formed.
A person with sasa yogam in his horoscope will have the following effects :
1) He will have good servants. Saturn is a planet related to servants
2) He will be the head of his place (village/town)
3) He has a character similar to that of saturn (questionable character)
4) He will acquire others wealth by his wicked nature