Conditional Dashas — Complete Taxonomy & Chart Rectification Methodology
A student presents his own rectified birth time and the class tests it. First, which dasha to use: the conditional nakshatra dashas Parashara gives, how common each one is, and the ranking — rarest first, longest second; a dasha half the people qualify for gets no priority over Vimshottari. In this chart only the two common ones apply, so Vimshottari is used. Then the rectification itself: list the navamsa lagnas inside the birth window, test the marriage in Jupiter–Ketu on each, confirm it in the Tithi Pravesha chart of the marriage year, and narrow the window with each division that passes. The Bhoga formula shows what an antardasha delivers — marriage in Jupiter–Ketu, astrology in Jupiter–Rahu.
Key principle
The highest priority should be to the rarest dasha, and the second highest priority should be to the longest dasha.
Example Charts
Conditional Dashas — Complete Taxonomy and Priority Rules
Before any event is read, PVNR asks the class: which dasha should be used for this chart — Vimshottari, or does a conditional dasha apply?
The Conditional Dashas Named in Class
| Dasha | Condition | How common | What to do |
|---|---|---|---|
| Dwisaptati Sama Dasha (72 yr) | Lagna lord in the 7th, or 7th lord in lagna | 1/12 + 1/12 − 1/144, roughly 1/6 | Give it priority |
| Dwadasottari Dasha | Lagna in the amsha of Venus — Navamsa lagna in Taurus or Libra | 2 in 12 = 1/6 | Give it priority |
| Panchottari Dasha | Lagna in Cancer in both Rasi and Dwadasamsa (D-12) | 1/12 × 1/12 = 1/144 | Jump to it |
| Shashtihayani Dasha | Sun in lagna | Rare — the class notes put it at 1 in 12 | Give it priority |
| Shodasottari Dasha (116 yr) | Lagna in Moon's Hora in Krishna Paksha, or in Sun's Hora in Shukla Paksha | Half of all charts | No priority over Vimshottari |
| Shatrimsa Sama Dasha (36 yr) | Daytime birth in Sun's Hora, or night birth in Moon's Hora | 1/4 + 1/4 = half of all charts | No priority over Vimshottari |
Ashtottari is named with the last two as a dasha whose condition half the people satisfy.
The published class notes list two more in the recap of conditions. Neither is discussed on the recording, and neither applies to this chart:
- Chaturaseeti Sama Dasha — the 10th lord in the 10th house
- Satabdika Dasha — lagna vargottama
On Dwadasottari: Parashara only says "lagna in the amsha of Venus". When he does not say which amsha, it stands for Navamsa by default. PVNR calls this the standard reading and adds that it may not be 100% accurate.
On Panchottari:
"If you see this dasha applying in any chart, jump to this dasha. Use this dasha. This dasha will decide their life."
Priority Rules
- The rarest dasha comes first.
- The longest dasha comes second. Between two that apply, take the longer cycle — Shodasottari (116 years) over Shatrimsa Sama (36 years).
- A dasha whose condition half the people meet is generic. It need not be given priority over Vimshottari; Vimshottari will still work very well. It can still be used to see events of one particular area of life.
"The highest priority should be to the rarest dasha, and the second highest priority should be to the longest dasha."
The Hora in These Conditions
The Hora here is not the hour of the day. It is the D-2 division: the sign cut into two halves.
- Odd signs are male and belong to the Sun; even signs are female and belong to the Moon
- The first Hora of a sign belongs to the planet the sign belongs to
- Odd sign: first 15° = Sun's Hora, second 15° = Moon's Hora
- Even sign: first 15° = Moon's Hora, second 15° = Sun's Hora
Applying It to This Chart
- Dwisaptati Sama: no. Lagna lord Mars is in the 5th; the 7th lord is not in lagna.
- Shashtihayani: no. Sun is not in lagna.
- Day or night? Lagna is at 16° Aries and Sun at 4° Libra — the Sun is already below the western horizon. Night birth.
- Hora of the lagna: Aries is an odd sign and the lagna is past 15° → Moon's Hora.
- Paksha: he was born on Amavasya, Diwali day → Krishna Paksha.
- Shatrimsa Sama: night birth in Moon's Hora → applies. But it is a half-the-people dasha.
- Shodasottari: Moon's Hora in Krishna Paksha → applies. Being longer, this is the one to use if a conditional dasha is wanted for him.
Conclusion: no rare conditional dasha applies. The class goes back to Vimshottari for the rest of the lesson.
The condition itself hangs on the rectification. A student points out that the lagna is only just past 15°. Had the birth been at 6:20 or 6:25 the lagna would be in Sun's Hora and neither dasha would apply. PVNR's answer: treat each combination as a separate case — lagna before 15° with Leo Navamsa, with the dasha or without it; Virgo Navamsa with the dasha — and see which case works on the events.
Does Vimshottari Apply to Everybody?
"Parashara said that Vimshottari is a very important dasha in Kali Yuga. He did not say it applies to everybody or it gives perfect results for everybody. And in my experience, when I see Vimshottari Dasha being applied in a chart where one of these dashas applies, I don't see Vimshottari working so well."
- PVNR's advice: give importance to these dashas when they apply. Ignoring Vimshottari in such a chart is acceptable in his view — but that view may not be accurate, so consider all the options and test them on charts.
- The example from the previous class: M. S. Subbulakshmi. The class picked the death-giving planets from the chart and found the death in exactly their periods in the conditional dasha. Elsewhere astrologers were explaining the same death through the Vimshottari period with nakshatra dispositors and other convoluted logic.
"You always find explanation for what you know, but it is not conducive for making good predictions."
All Events, or One Area of Life?
A student asks whether a conditional dasha shows everything or only matters tied to its condition. There are two views, because Parashara did not say what should be seen from each one:
- An alternative to Vimshottari — whatever would be read from Vimshottari is read from this dasha instead
- One angle only — Sun in lagna makes a principled, dharmic person with a radiant charm (Sun is the karaka of dharma); Shashtihayani would then be read only for events touching that side of him
What PVNR and Sanjay Rath do: when one of the rare dashas applies, they use it in place of Vimshottari. There is a clear focus, and events of that focus come out more clearly, but everything can be seen in it.
"The proof is in the pudding. Whatever you see working in charts, that is what you should be using."
What Is the Basis of These Dashas?
A student asks why the order and the lengths are what they are, and why each dasha has its condition.
- PVNR knows the logic of the sequence and the lengths for a couple of the dashas, not for all — not for Shodasottari
- There is an astronomical basis, and a basis in stories from the Puranas that allude to the same astronomical facts
- The lengths do have links to the synodic cycles of the planets. One student in the class is researching exactly this.
"There must be some logic. Nothing is arbitrary in the world."
Chart Rectification Methodology
The method: take the window the family gives, list the lagnas that rise in each divisional chart inside it, and test each against known events. Each division that passes narrows the window.
Step 1 — Rasi Lagna
From 6:15 to about 7:00 PM the Rasi lagna is Aries throughout. No doubt there.
Step 2 — Navamsa Lagna Possibilities
Four Navamsa lagnas rise in the window:
- Leo — if the birth was nearer 6:15
- Virgo — roughly 6:30 to 6:42 (the student's choice)
- Libra — roughly 6:41 to 6:50
- Scorpio — after that
At 6:31 PM the Navamsa lagna changes 38 seconds earlier and about 11½ minutes later.
Step 3 — Testing the Marriage in Navamsa
Marriage: August 21, 1997, in Jupiter Dasha, Ketu Antardasha.
With Virgo Navamsa lagna:
- Jupiter is the 4th and 7th lord, placed in Capricorn in the 5th — the house of love and affection
- Jupiter has a Parivartana with Saturn, the 5th lord, who sits in Pisces in the 7th. A Raj Yoga between them. Because of the exchange Jupiter gives results as if he were in the 7th, in his own Pisces. He can give marriage.
- Ketu is in the 9th house of dharma, in a sign of Venus (Taurus)
- Darakaraka is Jupiter; Atmakaraka is Moon. They are together in the Rasi chart and in trines in Navamsa.
- Bhoga of the antardasha: count from the dasha lord to the antardasha lord, then the same number from the antardasha lord. Jupiter (Capricorn) to Ketu (Taurus) is 5; the 5th from Taurus is Virgo — the lagna.
"So a new beginning, a new beginning in a dharmic life, getting married is certainly possible."
Step 4 — The Window After Each Test
- Natal Navamsa: 38 seconds backward, about 11½ minutes forward
- The Tithi Pravesha chart of the marriage year (Part 3) cuts the forward side to about 9 minutes
- Within that half-minute back and 9 minutes forward, all the logic so far still holds
Step 5 — Dasamsa
- The Dasamsa lagna changes when the Rasi lagna crosses 15° and 18°: 6½ minutes earlier or 4 minutes later
- 6½ minutes back is outside the window already fixed, so the previous Dasamsa lagna, Leo, is out
- Virgo or Libra Dasamsa lagna remain. Neither changes anything concluded so far. The career reading in Part 5 uses Virgo.
Later Checks
- Siddhamsa (D-24): Virgo lagna explains the education; Leo, Libra and Scorpio on either side do not (Part 6)
- Saptamsa (D-7): the three children and their sex come out right (Part 7)
- Drekkana (D-3): its lagna holds for about 40 minutes, so it cannot narrow the time. It is checked only to see that it makes sense (Part 8).
- Vimsamsa (D-20): changes 1 minute 13 seconds earlier (Part 10)
The Marriage Year — Tithi Pravesha Chart
The student had also checked the Tithi Pravesha (TP) chart of the year of the marriage: the TP of 1996, which covers November 1996 to October 1997. For the 6:31 PM birth time the tithi returns at about 12:15 AM on November 11, 1996.
- TP Rasi lagna: Cancer. TP Navamsa lagna: Pisces.
The Hora Lord — Saturn or Moon
The Hora Lord is the ruler of the year. PVNR's screen first shows Saturn; the student, working at home, had got Moon.
- The TP moment falls on the border between two horas, so the answer depends on the definition of sunrise
- PVNR had recently switched his software to Sanjay Rath's sunrise definition, to prepare a panchanga for Jyotish Digest. Set back to his own definition — centre of the Sun's disc on the horizon — it gives Moon. (His reasons are in Part 15.)
Either planet promises the marriage:
- Saturn: 7th lord in the 9th house of the TP Rasi chart; in the 7th house of the TP Navamsa
- Moon: lagna lord of the TP Rasi chart; in the TP Navamsa, the 5th lord sitting in lagna
The Dasha That Gave the Marriage
The period running in the TP chart at the marriage was Jupiter's, with Ketu. The class notes name the dasha: the Ashtottari dasha reckoned from the janma tithi (Tithi Ashtottari).
- Jupiter is the 9th lord (dharma) in the TP Rasi chart and the lagna lord in the TP Navamsa. As lagna lord his agenda is to give a fresh start in dharmic life. He can give marriage.
- But Jupiter and Ketu are together in the 8th house of the TP Navamsa. A student says Jupiter therefore cannot give marriage. PVNR: being in the 8th does not stop the lagna lord from giving it. It shows obstacles.
- The native confirms: on the way to the wedding their vehicle met with an accident, and it was in doubt whether they would reach in time.
6th in Rasi, 8th in Navamsa
- In the TP Rasi chart Jupiter is also the 6th lord, in the 6th house. The 6th shows accidents and diseases. From this only a physical problem in Jupiter's period can be said — not tension about the marriage.
- In the Navamsa Jupiter is in the 8th. Navamsa is purely dharma, and going through the marriage ceremony is following dharma. So: obstacles and anxiety in following dharma.
Testing the Other TP Navamsa Lagnas
- Aries: Jupiter would be the 9th lord in the 7th. He could give marriage — but then no tensions would be expected.
- Taurus: marriage would not be expected at all. Ruled out.
- Aquarius: possible, but not a strong candidate.
PVNR had been leaning toward Aries until the native described the accident. That settles it for Pisces.
A Traditional Marriage
Ketu is a 9th lord in the TP Navamsa and shows dharma there.
"Both Jupiter and Ketu are traditional planets. So whatever marriage they give is likely to be traditional marriage rather than falling in love, running away from home, and getting married to a girl. This is a marriage that happens with the blessings of elders."
Being in the 8th, the two give some anxiety and tension along with it.
Bhoga Formula — Astrology Learning
To see what an antardasha delivers inside a dasha:
- Count the houses from the dasha lord to the antardasha lord
- Count the same number from the antardasha lord
- The house reached is the Bhoga — where the experiences of that antardasha are directed. Read it from the lagna of the divisional chart that governs the matter.
Jupiter–Ketu, in Navamsa: The Marriage
- Jupiter (Capricorn) to Ketu (Taurus) = 5
- 5th from Taurus = Virgo = the Navamsa lagna
- Bhoga in lagna → a new beginning in dharmic life. He married in this antardasha.
Jupiter–Rahu, in Siddhamsa: Astrology
In 2004 the native is in Jupiter Dasha, Rahu Antardasha, and has learnt astrology so well in about six months that he rectified his own chart. Learning is read in D-24.
- Jupiter is in Leo, Rahu in Gemini → Rahu is in the 11th from Jupiter
- 11th from Gemini = Aries = the 8th house from the Siddhamsa lagna, Virgo
- 8th house = occult knowledge
"So during this particular antardasha, what he will experience is eighth house matters. A lot of occult knowledge will come to him during this antardasha."
More Timing & Dashas lessons
Browse all →Dasha Analysis — Reading Mahadasha & Antardasha
Transits (Gochara) — Philosophy, Murti System & Vedha Obstruction
D7 Saptamsha Children Analysis — Sex Determination, Conception & Birth Timing
Example Chart (1969, Leo Lagna) — 8th+12th for Mystical Experience vs Just Sadhana, Cancer Drig Dasha Guru Arrival (from 2008) & Libra Dasha Deep Realizations (2015-22)
Kurma Chakra Dynamic: Lagna Star of Lunar NY Chart=East; Sarvata Bhadra Veda on Stars=Disaster Regions; Mundane D40/D60 Reliable(No Birth Time Uncertainty). SC Dasha=Parashara Best Kali Yuga Technique: Lagna+Moon+Sun Progress 1 Sign/Year; Dasha Pravesh Chakra; Lord in Own Sign+Exalted=Auspicious; Rahu in Sign=Weakened; 5H Strong=Power; 8H Strong=Setback; Convergence from 2+ References