Amsa-Amsa Principle: Navamsa Within Any Divisional Chart = Blessings in That Life Area (D81=D9ofD9, D108=D9ofD12, D144=D9ofD16); Nakshatra Dasha Selection: ONLY Moon Hora+Sukla Paksha=Vimshottari; All Others=Shodashottari; Hora Determination: Male Sign(1st Half=Surya, 2nd Half=Chandra); Female Sign(1st Half=Chandra, 2nd Half=Surya)

Navamsa Inside Any Divisional Chart

The point comes up while testing whether the D10 lagna is vargottama. A student asks where vargottama is to be seen — against the rasi chart? No: inside the dasamsa itself.

• Take the divisional chart as the rasi. Use the divisional longitudes. Find the navamsa of that.
• Parashara lists all the divisional charts at the start, but later speaks almost only of rasi and navamsa. People concluded those are the only two charts.
• The teacher's reading: "rasi and navamsa" holds with respect to every divisional chart. If D24 is the chart you are reading, take it as the rasi and find its navamsa. Those two are the key pair for that matter.
• Worked case: the D10 lagna is in Leo, a fixed sign. It is vargottama only if its divisional longitude lies between 13°20' and 16°40'. It is at 17° Leo, so it is not.

"That has led people to think that rasi and navamsa are the only charts. But what we are saying is, what it means is rasi and navamsa with respect to all these charts. You can find navamsa in all these charts."

Choosing the Nakshatra Dasha of a Divisional Chart

Treat the divisional chart as a rasi chart. The dasha is counted from the Moon's nakshatra in that chart (its divisional longitude). The paksha is read from the natal tithi.

Step 1 — special conditions, checked inside the divisional chart

The teacher runs through these before anything else. If one holds, its conditional dasha applies:

• Sun in lagna (used in the marriage case: Shashtihayani)
• Lagna vargottama (used in the marriage case: the 100-year dasha)
• 10th lord in the 10th (used on an annual chart from Chandra lagna: Chaturashiti-sama)
• Lagna lord in the 7th, or 7th lord in lagna (used on the D7: Dwisaptati-sama)
• Rahu in a quadrant or trine from the lagna lord (Ashtottari) — "we don't use Ashtottari"
• The condition must hold by longitude, not just by sign. In the D10 the lagna lord Sun is at 25° Virgo and Rahu at 2° Pisces: opposite signs, but about 23° short of a true 7th-house placement. In the 2012 annual navamsa the 7th lord sits in lagna but 20° past the lagna degree, "almost in the 2nd house" — the condition is not taken.
• A condition met by a weak planet may not hold: a debilitated Sun in lagna did not give a working dasha in the marriage case.

Step 2 — otherwise hora and paksha

Hora of the lagna of the divisional chart:

• Odd (male) sign: first half Surya hora, second half Chandra hora
• Even (female) sign: first half Chandra hora, second half Surya hora

• Parashara gives two conditions for Shodashottari and leaves Vimshottari general, with no conditions.
• Lomasha makes the two mutually exclusive and gives Vimshottari two variants. "We are following Lomasha."
• Vimshottari always applies in any case; the conditional dasha is the "most applicable" one. (Said while reading the D7.)

Worked in this lesson

• Vivekananda D10: lagna 17° Leo = second half of a male sign = Chandra hora; Krishna paksha → Shodashottari.
• Vivekananda D20: lagna 4° Capricorn = first half of a female sign = Chandra hora; Krishna paksha → Shodashottari.
• 2007 annual navamsa of the marriage case: Chandra hora, Sukla paksha → regular Vimshottari.
• 2012 annual navamsa of the marriage case: Chandra hora, Krishna paksha → Shodashottari.