Vrishabha lagna · vimshottari
The Rahu Mahadasha for Taurus Ascendant
18 years · Rahu rules no house
The Parashari way to read a mahadasha for a given ascendant starts with the houses its lord holds. For Taurus ascendant Rahu holds none: the nodes rule no sign in whole-sign lordship, so the 18-year Rahu mahadasha for Taurus is read through the lord of the sign Rahu occupies at birth, and through that sign’s house from Taurus, which no table can supply without the chart.
Rahu is exalted on the commoner reckoning in Taurus, the 1st from Taurus, and debilitated by the same reckoning in Scorpio, the 7th; planets.js records other signs as well. Rahu counts Venus, Taurus’s lagna lord, a friend; Venus’s own row names no node, so the reverse has no entry. Rahu’s own nakshatras fall in Ardra (the 2nd), Swati (the 6th) and Shatabhisha (the 10th) for Taurus ascendant, which is where a birth that opens in the Rahu mahadasha has its Moon.
The Nine Sub-Periods, by Lordship for Taurus
| # | Antardasha | Length (classical) | Its lord rules, for Taurus |
|---|---|---|---|
| 1 | Rahu–Rahu | 2 years 8 months 12 days | no house |
| 2 | Rahu–Jupiter | 2 years 4 months 24 days | the 8th and the 11th |
| 3 | Rahu–Saturn | 2 years 10 months 6 days | the 9th and the 10th |
| 4 | Rahu–Mercury | 2 years 6 months 18 days | the 2nd and the 5th |
| 5 | Rahu–Ketu | 1 year 18 days | no house |
| 6 | Rahu–Venus | 3 years | the 1st and the 6th |
| 7 | Rahu–Sun | 10 months 24 days | the 4th |
| 8 | Rahu–Moon | 1 year 6 months | the 3rd |
| 9 | Rahu–Mars | 1 year 18 days | the 7th and the 12th |
For Taurus ascendant, three of the Rahu mahadasha’s sub-periods belong to lords of a dusthana (the 6th, 8th or 12th): Rahu–Jupiter, Rahu–Venus and Rahu–Mars, and two to lords of a trikona other than the 1st: Rahu–Saturn and Rahu–Mercury. The sub-period of Venus, Taurus’s lagna lord, is Rahu–Venus, the sixth of nine, 3 years long. Counted in time, sub-periods whose lords hold a dusthana for Taurus take 6 years 5 months 12 days (36%) of the Rahu mahadasha’s 18 years, and those whose lords hold a trikona other than the 1st take 5 years 4 months 24 days (30%); a lord holding both is counted in both. In the Rahu mahadasha for Taurus, the Rahu and Ketu sub-periods are read through their dispositors in the chart, since neither node rules a house.
For a Taurus-rising chart this is the frame of the Rahu mahadasha, not a forecast: where Rahu and each sub-period lord actually sit, and their dignity there, decide what it comes to, and this page cannot know either.
Related
For Taurus or any other ascendant, the Rahu mahadasha’s sub-period arithmetic, with the nine pratyantars of each, is on the Rahu mahadasha table; the Taurus chart house by house on the Taurus ascendant page. How the Rahu mahadasha is read in general is in our Rahu mahadasha article, and the system in Vimshottari dasha explained.