Antardasha
every reader
What the tradition reads
An antardasha, also called a bhukti, is a sub-period running inside a larger mahadasha in the Vimshottari system, the dominant timing technique of Vedic astrology. Where the mahadasha gives a planet roughly a decade or two of general rulership over the whole life, the antardasha divides that span again among all nine grahas in the same fixed order, Ketu, Venus, Sun, Moon, Mars, Rahu, Jupiter, Saturn, Mercury, each sub-lord receiving a share proportional to its own mahadasha length out of the total of one hundred and twenty years. The tradition reads the antardasha lord as colouring the mahadasha lord's broad theme with its own finer business: a Jupiter mahadasha under a Saturn antardasha is read as growth arriving through discipline and delay rather than through the ease Jupiter alone would promise, while the same mahadasha under a Venus antardasha is read as growth arriving through relationship or pleasure instead. Astrologers judge the antardasha lord's own dignity, house placement and aspects at least as closely as the mahadasha lord's, since a badly placed antardasha lord is said to check or complicate what an otherwise strong mahadasha promises, and most predictive judgement in the Vimshottari system is made at the level of the antardasha rather than the coarser mahadasha alone.
The story
The antardasha is the second layer of the Vimshottari dasha scheme, the dominant timing system of Vedic astrology. Vimshottari is Sanskrit for the number one hundred and twenty, and the scheme divides a notional maximum lifespan of that many years among the nine grahas, the Sun, Moon and five visible planets together with the two lunar nodes Rahu and Ketu, each running a mahadasha of a fixed number of years starting from the nakshatra the Moon occupied at birth, called the janma nakshatra. Each mahadasha is further subdivided into these antardasha, or bhukti, periods, which are themselves divided again into pratyantardashas, giving the system a fine, layered structure rather than one flat sequence of decade long spans. Wikipedia's own account of the tradition notes that the sage Parashara is credited with naming some forty two dasha schemes in total, of which only two, Vimshottari and Ashtottari, remain in ordinary use, and that it is not known when the Vimshottari system was first devised or why its nine spans of years were fixed as they are. The word dasha itself is Sanskrit for a condition or a state, and antardasha adds antar, meaning inner or between, naming the period precisely as a state found inside another state, a period within a period, which is exactly the mechanical role the sub-period plays inside the larger one.
Written from
Corpus key glossary:antardasha.