While Vimsottari dasa covers 120 deg of zodiac, Tribhagi variation covers the
entire 360 deg. It is most useful to see when various planets, upagrahas and
sahamas give their results. You basically divide Vimsottari dasa into 3 cycles
of 40 years each, to get Tribhagi Vimsottari dasa. Each dasa corresponds to a
star and you cover all the 27 stars (i.e. 360 deg).
The first Venus dasa during 1961-1968 corresponds to Bharani star. The second
Venus dasa running during 2001-2008 corresponds to Poorva Phalguni star
(13Le20-26Le40). Of the 6 years and 8 months of this Venus dasa (one-third of
20 years), about 3 years 3.5 months are over. So 49.4% of the dasa is over. In
terms of the longitude range of the star, this corresponds to 13Le20+6 deg 35
min = 19Le55. Please notice that the natal bandhana sahama is at 19Le14 (and
there may be a little bit of error)!!!
You can see that Tribhagi Vimsottari dasa works nicely in conjunction with
sahamas. I illustrated the same thing earlier once in another context.
In fact, this technique works in Tithi Pravesha charts too, in addition to the
natal chart. For example, his 2004 annual Tithi Pravesha chart is cast on 3rd
August 2004 at 9:03:55 am (IST). In this chart, bandhana sahama is around 8 deg
in Gemini, i.e. at the beginning of Ardra nakshatra. Moon is in Satabhishak. If
you find Tribhagi Vimsottari dasa (compressed to the year), you will get:
Vimsottari Dasa - Tribhagi variation (started from Moon):
Bandhana sahama of the annual TP chart is at the beginning of Ardra. The first
Rahu dasa at the beginning of the year is of satabhishak. The second Rahu dasa
during Nov 12-Nov 30 is that of Ardra. The result of bandhana sahama is given
at the beginning of Ardra's Tribhagi Vimsottari dasa!!!!
Isn't it cool that Tribhagi Vimsottari dasa used in conjunction with bandhana
sahama results in a perfect timing in both natal and annual TP charts?! I think
it is!! When we use the techniques as they are supposed to be used, Jyotish is
like a precision science. But we often end up using techniques in our own way.
We should strive to find out the correct meaning and use of each technique.
May Jupiter's light shine on us,
PS: Swamiji ran Saturn-Rahu antardasa as per lagna Vimsottari dasa until
recently. Unfortunately, Saturn and Rahu have a papa kartari on lagna. While
Chandra Vimsottari dasa shows the attitude and reaction of the mind, lagna
Vimsottari dasa shows the actions and application of intelligence. Intelligent
astrologers can judge this for themselves.