Dashas are Jyotish's primary system for sequencing time. Rather than treating a birth chart as static, Dashas assign each Graha a specific period in your life to be "active" — the foundation of predictive timing in Vedic astrology.
The most widely used Dasha system is Vimshottari Dasha, which divides a 120-year cycle among the nine Grahas, each governing a fixed number of years:
Detachment, endings, spiritual undercurrents.
Relationships, comfort, creativity, material growth.
Authority, identity, recognition, government matters.
Emotional life, home, public connection, adaptability.
Action, courage, conflict, assertive change.
Ambition, unconventional growth, rapid expansion.
Wisdom, expansion, teaching, good fortune.
Discipline, structure, responsibility, long-term maturation.
Intellect, communication, commerce, analysis.
Your first Mahadasha (main period) is determined by the Nakshatra the Moon occupied at your exact birth moment — each Nakshatra is ruled by one of the nine Grahas in a fixed repeating order (Ketu → Venus → Sun → Moon → Mars → Rahu → Jupiter → Saturn → Mercury). The precise degree of the Moon within that Nakshatra determines how much of the first period has already elapsed at birth. This is why an accurate birth time is essential for correct Dasha timing.
Each Mahadasha is further divided into nine Antardashas (sub-periods), following the same nine-Graha sequence proportionally scaled to the Mahadasha's length. A person's Saturn Mahadasha, for example, contains a Saturn-Saturn Antardasha, a Saturn-Mercury Antardasha, and so on — refining the broad theme of the Mahadasha into shorter, more specific windows. Some traditions carry this down further into Pratyantardashas (sub-sub-periods) for even finer timing.
A Dasha period is generally read by combining the significations of its ruling Graha with that Graha's placement, strength and house ownership in the birth chart. A Jupiter Mahadasha for someone with a strong, well-placed Jupiter is read very differently from the same Mahadasha for someone with a weak or afflicted Jupiter — the period name alone is only the starting point.
This depends on your exact birth details. Create a free Jyotish profile and Prajvia will calculate your current Mahadasha and Antardasha.
Yes — Ashtottari, Yogini and several other systems exist and are used in specific traditions or chart contexts, but Vimshottari is by far the most common in general practice.
No. A Dasha indicates which themes are more active during a period; how they manifest depends on the full chart, transits, and — per Prajvia's approach — should be read as traditional interpretation rather than certainty.
The lengths are a fixed, traditional allocation of the 120-year Vimshottari cycle tied to each Graha's classical nature, not a reflection of astronomical orbital periods.