The Mars antardasha
the Mars antardasha, a sub-period of Mars falling within any mahadasha of the Vimshottari sequence
What the tradition reads
Every mahadasha in the Vimshottari sequence divides into nine antardashas, one for each graha, each lasting a length proportional to that planet's own share of the hundred and twenty year cycle, so the Mars antardasha, drawn from Mars's own seven years, is one of the shorter sub-periods the system produces, tied with Ketu's antardasha and longer only than the Sun's. Phaladeepika's governing rule for the sub-periods holds that a planet's dasha effects recur in its bhukti and antara alike, so a Mars antardasha is read through the same lens as a Mars mahadasha compressed into a shorter window: gains through fire, through conflict and through dealings with those in authority, alongside a real risk of dispute, injury or dealings of doubtful character. Arriving inside a longer period governed by another planet, a Mars antardasha is read as a short, energetic interruption, a stretch in which courage, haste and appetite for confrontation rise sharply within whatever the ruling mahadasha is already doing, for good where the native's own placement of Mars supports it and toward conflict or accident where it does not.
The story
Mars, called Mangala or Angaraka, is remembered in one telling as born from three drops of Shiva's own sweat, a red skinned infant handed immediately to the earth to be raised, heat and force present in him from the very first moment rather than arriving gradually. That immediacy, a character formed all at once rather than over a long development, matches how the tradition reads the planet's own antardasha: a short, hot sub-period that does not build slowly the way a longer dasha might but arrives already at full intensity, pressing its claim through direct action within whatever larger story the ruling mahadasha is telling. Where the myth's Mars is handed to the earth to be raised almost as soon as he exists, the astrological Mars antardasha is handed, just as briefly, into someone else's longer period, doing its work of courage, urgency and occasional damage in the time it has before yielding the sequence to the next planet in turn.
Written from
- Phaladeepika by Mantreswara, chapter 21, Sub-divisions of Dasas, sloka 1, via wisdomlib.org
- Phaladeepika, chapter 19, Dasas and their effects, sloka 9, via wisdomlib.org
- Wikipedia, Dasha (astrology), Vimshottari dasha section
- Wikipedia: Mangala
Corpus key antardasha:Mars.