Mandooka Dasha

The dasha that leaps

Mandooka Dasha is a Jaimini rashi dasha: its periods are zodiac signs, not grahas. Coming from Vimshottari, that is the adjustment to make first. You do not run a Mercury Mahadasha — you run a Gemini Mahadasha. There is no Moon in the system, no nakshatra, no balance at birth. The timeline begins at the moment you were born.

Mandooka means frog, and this system earns the name in a way the others do not. Sthira and Shoola walk the zodiac one sign at a time. Narayana follows a fixed progression table. Mandooka leaps — in trines, 120° at a time, four signs of one modality in a row, and then a jump across to the next quartet.

It is a K.N. Rao system, and the leaping is the whole point of it.

How the frog leaps

Seeded at Aries, the twelve periods run:

Each group is a set of trines — four signs 120° apart, the same modality by construction, since the modalities are the trinal quartets. The dasha exhausts one quartet completely, then jumps to the next.

The seed sets both the entry point and which quartet goes first. Seeded at Sagittarius, the dual quartet leads (Sagittarius, Pisces, Gemini, Virgo), then the movable, then the fixed. Each of the twelve possible seeds has its own full twelve-sign order.

Direction: even seeds run in reverse

There is a second axis. For an even-numbered seed sign — Taurus, Cancer, Virgo, Scorpio, Capricorn, Pisces — each quartet is traversed in reverse. Seeded at Aries the movable quartet reads Aries, Cancer, Libra, Capricorn; seeded at Cancer it reads Cancer, Aries, Capricorn, Libra.

A note that catches people out: this is index parity — even-numbered signs — and it is not the odd-footed/even-footed split that Narayana uses for its duration counting. Those two groupings look similar, sound similar, and are different sets. Mandooka uses index parity for both its direction and its counting rule.

The seed sign

The same rule as Shoola and Narayana: the stronger of the Lagna and the 7th from it.

Our strength comparison ranks, taking the first factor that separates the two signs: how many planets occupy the sign, whether a benefic (Jupiter or Mercury) or the sign’s own lord is among them, the dignity of the sign’s lord, the sign’s nature (dual > fixed > movable), and finally the sign’s ordinal as a deterministic tiebreak. The app shows you which sign it picked and why.

That ladder is a subset of the classical Jaimini one — see what we do not compute, below.

How long each sign lasts

Unlike Sthira’s flat table, Mandooka counts each sign’s years out to its lord, so its cycle length is chart-specific. For each sign in the leap order:

1. Lord in its own sign → 12 years. The maximum, and a special case.
2. Lord in the 7th from the sign — exactly opposite → 10 years. Also a special case, and one that is peculiar to Mandooka.
3. Otherwise, count between the sign and its lord’s sign, inclusive:
   • Even-numbered sign → count from the lord’s sign to the sign.
   • Odd-numbered sign → count from the sign to the lord’s sign.
4. A count landing on zero falls back to 12.

Note what is absent against Narayana’s otherwise-similar rule: there is no minus one, no exaltation or debilitation adjustment, and the direction hinges on index parity rather than the footed grouping. These are neighbouring rules that are not the same rule, and the differences are load-bearing.

Because the durations depend on where every sign lord sits, the cycle total varies from chart to chart — there is no “Mandooka is an N-year cycle” figure to quote. The sequence then repeats for as long as the timeline needs to cover.

The duration-branch dispute

Here is where we had to pick a side, and we would rather say so than let you find out later.

There are two published Mandooka duration rules:

We ship the K.N. Rao count-to-lord branch, following the PyJHora baseline the whole dasha engine is validated against — that branch is PyJHora’s default too.

Two things worth being clear about:

• This is a real dispute, not a rounding difference. The two branches produce entirely different period lengths for the same chart, and therefore different dates from the first period onward.
• It is not currently a settings toggle. The sthira_seed and shoola_seed flags let you switch those systems’ contested rules from the app. Mandooka’s duration branch is recorded in our engineering notes as a candidate future flag and is not yet exposed. So if you are comparing against software that follows Rath, there is presently no switch that will reconcile the two — and you should know that rather than assume one of the programs is broken.

Antardashas

Twelve sub-periods per mahadasha, each an equal one twelfth of the parent. The order is the frog-leap sequence itself, rotated so it begins at the mahadasha sign — so the sub-periods leap in trines exactly as the mahadashas do, and the pattern is self-similar all the way down.

Setting dasha_antardasha_mode=EQUAL replaces this with a plain zodiacal walk from the parent sign. Same durations, and the leaping — the one thing that makes Mandooka Mandooka — is gone from the sub-levels entirely. CLASSICAL is the default and is the one to read.

What we do not compute

• The Sanjay Rath duration branch. Covered above. One of two published rules, not switchable, and the largest single caveat on these dates.
• The full Jaimini strength ladder. Aspects on the sign, the comparative strength of the two signs’ lords and the lord’s exact degree are not part of our seed comparison; our final tiebreak is the sign’s ordinal rather than anything astrological. On a close Lagna/7th call our seed can differ from a fuller implementation’s — and a different seed is a different timeline from year zero.
• Co-lord handling for Scorpio and Aquarius. We count to the traditional lords (Mars and Saturn). Whether Ketu and Rahu should co-rule for these counts is a live question in the Jaimini literature, and we do not offer the choice.
• Divisional Mandooka. The rasi chart only.
• Applicability. We compute Mandooka for every chart. The classical literature does not intend every dasha for every native, and we do not assess whether yours qualifies.
• Interpretation. The dasha names a sign and a window. What Capricorn means depends on what it holds and rules in your chart, and on what is transiting it — see gochar.

Notes on this timeline

• Periods are signs, not grahas.
• Order is K.N. Rao’s frog-leap: trinal leaps through one modality quartet at a time, then a jump to the next.
• Seed = stronger of Lagna and the 7th; an even-numbered seed reverses each quartet.
• Duration = count to the lord; own sign → 12, lord in the 7th → 10. No minus-one, no exalt/debil adjustment.
• Cycle length is chart-specific — there is no fixed total. The sequence repeats to cover the timeline.
• Starts exactly at birth — no balance.
• The K.N. Rao vs Sanjay Rath duration branch is a documented dispute; we ship K.N. Rao and it is not yet switchable.
• Antardashas: the leap order rotated to the parent, equal twelfths.
• A dasha year is 365.2425 days.