In astrology, Mahadasha is a period that is ruled by any one of the nine planets, which come in individual life. Vimshottari Dasha shows which planets will be ruling at a particular time. Vimshottari stands for the number, 120. The maximum duration of life of an individual human being is 120 years., which is the combined duration of a planetary period i.e. 7 planets & 2 shadow planets.
Ketu Mahadasha for 7 years.
Venus Mahadasha for 20 years.
Sun Mahadasha for 6 years.
Moon Mahadasha for 10 years.
Mars Mahadasha for 7 years.
Rahu Mahdasha for 18 years.
Jupiter Mahadasha for 16 years.
Saturn Mahdasha for 19 years.
Mercury Mahadasha for 17 years.