Pillar article
Shukra Mahadasha Follows Ketu
Shukra mahadasha is 20 years, the longest Vimshottari period, and it starts immediately after Ketu's 7 years. The opening bhukti is Venus itself, about three years and four months, before the other lords take their turns.

A long chapter after a separating one
Ketu's mahadasha detaches. It lasts 7 years and often feels like a narrowing. Venus comes next in the fixed order and spends 20 years on joining, comfort, art, vehicles, and marriage, according to the houses Venus rules and occupies. The contrast is in the order, not a guarantee of pleasure. If Venus is debilitated in Virgo, or in the 6th, 8th, or 12th, the 20 years are Venus in difficulty. If Venus is exalted in Pisces or in Taurus or Libra, the same 20 years have a strong karaka. The mystery is usually just the condition of Venus, unread.
The opening years are Venus alone
Antardasha length is the product of the two year counts divided by 120. Venus times Venus is 400 divided by 120, three and a third years, about three years and four months in the traditional 360-day count. Those opening years show Venus without another lord sharing the subtitle. Later bhuktis bring the Sun, the Moon, Mars, Rahu, Jupiter, Saturn, Mercury, and Ketu under Venus's roof. A hard Saturn bhukti inside Venus mahadasha is Saturn's topics for that slice, not proof that the 20 years failed.
Marriage and money inside the 20
Venus is kalatra karaka, so marriage questions are louder in this mahadasha even when Venus is not the 7th lord. If Venus is the 7th lord, Aries or Scorpio lagna, the whole 20 years are structurally about marriage. Vehicles are Venus and the 4th house. Comfort spending can swell the 12th if Venus occupies it. The 2nd and 11th still decide savings and income. Do not treat every Venus decade as wealth. Treat it as Venus's houses, for longer than any other lord is allowed to speak.
Frequently asked questions
How long is Shukra mahadasha, and what comes before it?
20 years, after Ketu's 7. The first antardasha is Venus-Venus, about three years and four months.
Is it always a pleasant 20 years?
Only if Venus is strong and well placed. Venus in Virgo is debilitated. Venus in the 6th, 8th, or 12th carries those houses for a long time.
For which lagnas is Venus the 7th lord?
Aries and Scorpio. For them the 20 years are directly about marriage, not only about Venus as karaka.
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D1, D9, D10, dashas, yogas, and transits, the same calculations referenced in this article.
