Vedic Dasha

Vimshottari means “120-year” — the cycle’s total length. Each of the nine grahas rules a fixed share: Sun 6, Moon 10, Mars 7, Rahu 18, Jupiter 16, Saturn 19, Mercury 17, Ketu 7, Venus 20. The cycle is keyed to the nakshatra your Moon occupied at birth.

Ashtottari is a 108-year, 8-lord cycle (no Ketu) attributed to Satya Acharya. Several classical schools — particularly in Bengal and parts of North India — read Ashtottari alongside Vimshottari for nuance.

Yogini is a 36-year cycle of eight feminine deities (Mangala, Pingala, Dhanya, Bhramari, Bhadrika, Ulka, Siddha, Sankata), each with a planetary lord. Years ascend 1, 2, 3, …, 8. Sources: Sanjay Rath’s Yogini Dashas (1999); Charak’s Predictive Astrology Ch. 18.

Chara is the Jaimini sign-based dasha. Each rashi rules 9 years (movable), 8 (fixed), or 7 (dual) — total ~96 years. The cycle starts at the lagna’s rashi and runs zodiacally; the rashi’s natural lord is the mahadasha lord. Antardasha breakdown is not exposed here — the mahadasha is the dominant Jaimini timing layer.

Narayan applies the Jaimini parity-direction rule (Upadesa Sutras Ch. 2) on top of the Chara skeleton: an odd-padi (vishama-pada) lagna sends the cycle forward (zodiacal); an even-padi (sama-pada) lagna sends it backward. The variant computed here uses fixed Chara-modality durations (9/8/7) and natural sign-lords; the full Sanjay-Rath algorithm in Narayana Dasa (Sagar Publications) uses variable sign-to-lord-distance durations and is not implemented here.