What is Dasha? Reading life periods in Indian astrology
Dasha is the central technique for timing life in Indian astrology (Jyotish). It divides life into periods and assigns each a ruling planet. This guide explains the widely used Vimshottari Dasha and how its periods are read.
Dasha sets the ruling planet of each period
Dasha lays a timetable over the birth chart. Each period has a ruling planet (the dasha lord), and its placement and the life areas it rules describe the themes that come forward during that time.
Where Western astrology times life mainly through current planetary motion (transits), Dasha builds a timetable for the whole life from the natal configuration itself.
Vimshottari Dasha: 120 years across nine planets
Vimshottari distributes 120 years across nine planets in a fixed order: Ketu → Venus → Sun → Moon → Mars → Rahu → Jupiter → Saturn → Mercury, then back to Ketu. Each planet rules three nakshatras (the 27 divisions of 13°20′).
| Period ruler | Years | Nakshatras (Moon position) |
|---|---|---|
| Ketu | 7 | Ashwini, Magha, Mula |
| Venus | 20 | Bharani, Purva Phalguni, Purva Ashadha |
| Sun | 6 | Krittika, Uttara Phalguni, Uttara Ashadha |
| Moon | 10 | Rohini, Hasta, Shravana |
| Mars | 7 | Mrigashira, Chitra, Dhanishta |
| Rahu | 18 | Ardra, Swati, Shatabhisha |
| Jupiter | 16 | Punarvasu, Vishakha, Purva Bhadrapada |
| Saturn | 19 | Pushya, Anuradha, Uttara Bhadrapada |
| Mercury | 17 | Ashlesha, Jyeshtha, Revati |
The first period comes from the Moon at birth
The ruler of the Moon's nakshatra at birth gives the first dasha. How far the Moon had travelled through that nakshatra sets the remaining balance: if it was halfway through, the first period starts with half that planet's years.
The Moon moves about 13 degrees a day, so birth time also shifts dasha boundaries. The more precise the birth time, the more precisely period start and end dates can be calculated.
Mahadasha and Antardasha
The major periods, lasting several years to nearly two decades, are Mahadashas. Each is divided into nine Antardashas in the same order, beginning with the Mahadasha lord itself.
An Antardasha lasts major-period years × sub-period planet's years ÷ 120. Saturn's Antardasha within Jupiter's 16-year Mahadasha, for example, lasts 16 × 19 ÷ 120 ≈ 2.5 years. Further subdivision (Pratyantardasha) is also used.
Reading a period
Combine the dasha lord's sign and house, the houses it rules, its relationships and its strength, with its condition in divisional charts such as the D9 and D10.
Current planetary motion (gochara) is layered on separately. Reading the period ruler and the current sky as two layers makes the themes of each time easier to organise.
How GenesisCore handles it
GenesisCore calculates Jyotish separately from Western astrology. The Premium Jyotish screen shows the current dasha, sub-periods and gochara in a period view, alongside primary analysis (L1) and integrated interpretation (L2). Period views organise themes and time windows; they do not promise specific events.
FAQ
- What is a Dasha?
- A Jyotish technique that divides life into planetary periods; the Vimshottari Dasha distributes 120 years among nine planets.
- How is my Dasha determined?
- By the nakshatra of the natal Moon and how far through it the Moon had moved, which sets the first period and its remaining years.
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