Mars Mahadasha, Jupiter Antardasha (Mangal–Guru)

The Jupiter antardasha is the third of the nine sub-periods inside the Mars mahadasha. 7 × 16 ÷ 120 makes the Mars–Jupiter sub-period 11 months 6 days on the classical year of twelve thirty-day months, which is how the texts state it, or 341 days on the solar year of 365.2425 days that the dasha calculator uses.

Jupiter’s turn in the Mars mahadasha comes only after Mars and Rahu have run, which takes 1 year 5 months 15 days. When the Mars–Jupiter sub-period gives way to Mars–Saturn, 4 years 7 months 9 days of the Mars mahadasha remains.

Jupiter’s 16 years make every Jupiter antardasha 16/120 of the mahadasha containing it, so inside Mars’s 7 years the Mars–Jupiter sub-period is the fifth-longest of the nine.

The Nine Pratyantardashas of Mars–Jupiter

A pratyantardasha of Mars–Jupiter is 7 × 16 × its own lord’s years ÷ 14,400, and the nine run in cycle order starting from Jupiter. Venus’s is the longest inside Mars–Jupiter at 56 days and the Sun’s the shortest at 17 days, on the classical year and rounded to the day.

How Mars and Jupiter Stand to Each Other

On the natural friendship table, Mars and Jupiter each count the other a friend. The Mars–Jupiterrelationship is mutual, so it reads the same from either lord.

Counted between the signs they own, Sagittarius is the 9th from Mars’s Aries, Pisces is the 12th from Mars’s Aries, Sagittarius is the 2nd from Mars’s Scorpio and Pisces is the 5th from Mars’s Scorpio. Whatever the ascendant, the houses Mars rules and the houses Jupiter rules sit at those same distances from each other in the chart, so the Mars–Jupiter sub-period always joins lordships that far apart.

The Same Pair the Other Way Round: Jupiter–Mars

7 × 16 equals 16 × 7, so the Mars antardasha of the Jupiter mahadasha is exactly as long as Mars–Jupiter: 11 months 6 days. Nothing else about Jupiter–Mars matches. It is the eighth sub-period of Jupiter’s 16 years rather than the third of Mars’s 7; it opens after 12 years 8 months of the Jupiter mahadasha, against 1 year 5 months 15 days here; and its pratyantars start from Mars instead of Jupiter.

What the Texts Assign to Mars and Jupiter

The karaka list the tables give Mars, the mahadasha lord, is younger siblings, land and property, weapons, engineering and the armed forces; for Jupiter, the lord of the Mars–Jupiter sub-period, it is children, teachers and gurus, higher learning and dharma. Parashari practice reads the sub-period through the houses each of the two owns and occupies in the birth chart, and through where Jupiter stands counted from Mars there. None of that is a forecast, and this page makes none: without a chart, Mars–Jupiter is a length and a position, and the 11 months 6 days 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–Jupiter sub-period is still ahead depends on how far the Moon had gone into the nakshatra. For a birth in Punarvasu, Vishakha or Purva Bhadrapada, the Jupiter mahadasha comes first, and the Mars mahadasha is the eighth 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 गुरु अंतर्दशा.