Mars Mahadasha, Venus Antardasha (Mangal–Shukra)

The Venus antardasha is the seventh of the nine sub-periods inside the Mars mahadasha. 7 × 20 ÷ 120 makes the Mars–Venus sub-period 1 year 2 months on the classical year of twelve thirty-day months, which is how the texts state it, or 426 days on the solar year of 365.2425 days that the dasha calculator uses.

Venus’s turn in the Mars mahadasha comes only after Mars, Rahu, Jupiter, Saturn, Mercury and Ketu have run, which takes 4 years 10 months 24 days. When the Mars–Venus sub-period gives way to Mars–Sun, 11 months 6 days of the Mars mahadasha remains.

Venus’s 20 years make every Venus antardasha 20/120 of the mahadasha containing it, so inside Mars’s 7 years the Mars–Venus sub-period is the longest of the nine.

The Nine Pratyantardashas of Mars–Venus

A pratyantardasha of Mars–Venus is 7 × 20 × its own lord’s years ÷ 14,400, and the nine run in cycle order starting from Venus. Venus’s is the longest inside Mars–Venus at 70 days and the Sun’s the shortest at 21 days, on the classical year and rounded to the day.

How Mars and Venus Stand to Each Other

On the natural friendship table, Mars and Venus each count the other neutral. The Mars–Venusrelationship is mutual, so it reads the same from either lord.

Counted between the signs they own, Taurus is the 2nd from Mars’s Aries, Libra is the 7th from Mars’s Aries, Taurus is the 7th from Mars’s Scorpio and Libra is the 12th from Mars’s Scorpio. Whatever the ascendant, the houses Mars rules and the houses Venus rules sit at those same distances from each other in the chart, so the Mars–Venus sub-period always joins lordships that far apart.

The Same Pair the Other Way Round: Venus–Mars

7 × 20 equals 20 × 7, so the Mars antardasha of the Venus mahadasha is exactly as long as Mars–Venus: 1 year 2 months. Nothing else about Venus–Mars matches. It is the fourth sub-period of Venus’s 20 years rather than the seventh of Mars’s 7; it opens after 6 years of the Venus mahadasha, against 4 years 10 months 24 days here; and its pratyantars start from Mars instead of Venus.

What the Texts Assign to Mars and Venus

The karaka list the tables give Mars, the mahadasha lord, is younger siblings, land and property, weapons, engineering and the armed forces; for Venus, the lord of the Mars–Venus sub-period, it is marriage, vehicles, art, music, luxury, hotels and cosmetics. Parashari practice reads the sub-period through the houses each of the two owns and occupies in the birth chart, and through where Venus stands counted from Mars there. None of that is a forecast, and this page makes none: without a chart, Mars–Venus is a length and a position, and the 1 year 2 months above is the whole of what can be said about it in general.

A birth with the Moon in Mrigashira, Chitra or Dhanishta opens life inside the Mars mahadasha itself, part-way through, and whether the Mars–Venus sub-period is still ahead depends on how far the Moon had gone into the nakshatra. For a birth in Bharani, Purva Phalguni or Purva Ashadha, the Venus mahadasha comes first, and the Mars mahadasha is the fourth in that sequence.

The Other Sub-Periods of the Mars Mahadasha

The full table for the Mars mahadasha, with where each sub-period opens and closes, is on the Mars mahadasha page. How the Mars mahadasha is read as a whole is in our Mars mahadasha article, and the system itself in Vimshottari dasha explained. This page in Hindi: मंगल महादशा में शुक्र अंतर्दशा.