Ketu Mahadasha, Sun Antardasha (Ketu–Surya)

The Sun antardasha is the third of the nine sub-periods inside the Ketu mahadasha. 7 × 6 ÷ 120 makes the Ketu–Sun sub-period 4 months 6 days on the classical year of twelve thirty-day months, which is how the texts state it, or 128 days on the solar year of 365.2425 days that the dasha calculator uses.

The Sun’s turn in the Ketu mahadasha comes only after Ketu and Venus have run, which takes 1 year 6 months 27 days. When the Ketu–Sun sub-period gives way to Ketu–Moon, 5 years 27 days of the Ketu mahadasha remains.

The Sun’s 6 years make every Sun antardasha 6/120 of the mahadasha containing it, so inside Ketu’s 7 years the Ketu–Sun sub-period is the shortest of the nine.

The Nine Pratyantardashas of Ketu–Sun

A pratyantardasha of Ketu–Sun is 7 × 6 × its own lord’s years ÷ 14,400, and the nine run in cycle order starting from the Sun. Venus’s is the longest inside Ketu–Sun at 21 days and the Sun’s the shortest at 6 days, on the classical year and rounded to the day.

How Ketu and the Sun Stand to Each Other

Ketu’s row in the friendship lists counts the Sun an enemy. The Sun’s row names no node, so the other direction of the Ketu–Sun 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 Ketu–Sun 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: Sun–Ketu

7 × 6 equals 6 × 7, so the Ketu antardasha of the Sun mahadasha is exactly as long as Ketu–Sun: 4 months 6 days. Nothing else about Sun–Ketu matches. It is the eighth sub-period of the Sun’s 6 years rather than the third of Ketu’s 7; it opens after 4 years 7 months 24 days of the Sun mahadasha, against 1 year 6 months 27 days here; and its pratyantars start from Ketu instead of the Sun.

What the Texts Assign to Ketu and the Sun

The karaka list the tables give Ketu, the mahadasha lord, is moksha, past-life skill, renunciation, occult knowledge and flags and banners; for the Sun, the lord of the Ketu–Sun sub-period, it is father, government, authority, the soul (atma) and administration. 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 the Sun stands counted from Ketu there. None of that is a forecast, and this page makes none: without a chart, Ketu–Sun is a length and a position, and the 4 months 6 days above is the whole of what can be said about it in general.

A birth with the Moon in Ashwini, Magha or Mula opens life inside the Ketu mahadasha itself, part-way through, and whether the Ketu–Sun sub-period is still ahead depends on how far the Moon had gone into the nakshatra. For a birth in Krittika, Uttara Phalguni or Uttara Ashadha, the Sun mahadasha comes first, and the Ketu mahadasha is the eighth in that sequence.

The Other Sub-Periods of the Ketu Mahadasha

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