Jupiter Mahadasha, Ketu Antardasha (Guru–Ketu)

The Ketu antardasha is the fourth of the nine sub-periods inside the Jupiter mahadasha. 16 × 7 ÷ 120 makes the Jupiter–Ketu 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.

Ketu’s turn in the Jupiter mahadasha comes only after Jupiter, Saturn and Mercury have run, which takes 6 years 11 months 6 days. When the Jupiter–Ketu sub-period gives way to Jupiter–Venus, 8 years 1 month 18 days of the Jupiter mahadasha remains.

Ketu’s 7 years make every Ketu antardasha 7/120 of the mahadasha containing it, so inside Jupiter’s 16 years the Jupiter–Ketu sub-period is the seventh-longest of the nine, level with Jupiter–Mars, because Mars and Ketu each run 7 years as mahadashas.

The Nine Pratyantardashas of Jupiter–Ketu

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

How Jupiter and Ketu Stand to Each Other

Ketu’s row in the friendship lists counts Jupiter neutral. Jupiter’s row names no node, so the other direction of the Jupiter–Ketu relationship has no entry, and this page does not supply one. The nodes have no row in the seven-graha table that kundli matching uses; the node’s own entry is the one printed on its planet page.

Ketu owns no sign in the standard scheme, so the Jupiter–Ketu sub-period has no fixed distance between lordships. What stands in for it is the node’s dispositor — the lord of the sign Ketu occupies at birth — which differs from chart to chart.

The Same Pair the Other Way Round: Ketu–Jupiter

16 × 7 equals 7 × 16, so the Jupiter antardasha of the Ketu mahadasha is exactly as long as Jupiter–Ketu: 11 months 6 days. Nothing else about Ketu–Jupiter matches. It is the seventh sub-period of Ketu’s 7 years rather than the fourth of Jupiter’s 16; it opens after 3 years 11 months 18 days of the Ketu mahadasha, against 6 years 11 months 6 days here; and its pratyantars start from Jupiter instead of Ketu.

What the Texts Assign to Jupiter and Ketu

The karaka list the tables give Jupiter, the mahadasha lord, is children, teachers and gurus, higher learning and dharma; for Ketu, the lord of the Jupiter–Ketu sub-period, it is moksha, past-life skill, renunciation, occult knowledge and flags and banners. Parashari practice reads the sub-period through the houses each of the two owns and occupies in the birth chart (for Ketu, which owns none, the house it occupies and the lord of its sign), and through where Ketu stands counted from Jupiter there. None of that is a forecast, and this page makes none: without a chart, Jupiter–Ketu 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 Punarvasu, Vishakha or Purva Bhadrapada opens life inside the Jupiter mahadasha itself, part-way through, and whether the Jupiter–Ketu sub-period is still ahead depends on how far the Moon had gone into the nakshatra. For a birth in Ashwini, Magha or Mula, the Ketu mahadasha comes first, and the Jupiter mahadasha is the seventh in that sequence.

The Other Sub-Periods of the Jupiter Mahadasha

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