Sutras

Every sutra, its source, and how it has performed

Each sutra is distilled from the classical shlokas and stated plainly before it is tested. It enters the register first; results are added as charts are checked.

A selection from the register

ID	Sutra	Source	Charts	Events tested	Status
S-001	A sign exchange makes the dasha of either planet activate the houses of both	Phaladeepika, Yogas	In progress	In progress	Promising
S-002	Saturn in the 4th house brings a change of residence early in Saturn's dasha	BPHS, Dasha phala	In progress	In progress	Promising
S-003	The Moon in the 12th brings relocation in its antardasha	General signification	In progress	In progress	Supporting
S-004	Rahu in the ascendant turns life towards foreign lands or technology in Rahu's dasha	General signification	In progress	In progress	Supporting
S-0	The lord of the 7th placed well in the Navamsa brings marriage in its own period	Classical text	In progress	In progress
S-0	Jupiter's transit over the natal Moon in a favourable dasha opens a new role	Classical text	In progress	In progress
S-0	The yogakaraka's antardasha raises status when it is strong in the Dashamsa	Classical text	In progress	In progress
S-0	A debilitated planet with its debilitation cancelled gives results late but in full	Classical text	In progress	In progress

A selection from a far larger body of sutras

Brihat Parashara Hora Shastra, Laghu Parashari, Phaladeepika and the other classical texts hold a vast number of sutras. Those shown here are a representative selection.

Next in testing: marriage and relationship sutras, covering the 7th house and its lord, Venus, the Navamsa (D9) and the dasha periods that time marriage, drawn from the classical texts.

How to read the status

Each sutra is graded by how consistently it holds when tested against dated life events. No sutra holds for everyone in every chart; the grade shows how far it can be relied on, and on what terms.

Established holds in at least 80% of the events it applies to, across 30 or more charts.
Reliable holds in most of the events it applies to (65–80%), across 30 or more charts.
Promising has held in early testing, on too few charts to rely on yet.
Conditional holds when other layers confirm it, such as the divisional charts, the dasha or planetary strength, but not on its own.
Supporting rarely decides an outcome by itself, but adds weight when other sutras point the same way.

The early pattern is already clear: sutras built on a chart's own structure, such as which house lords exchange signs, hold well. General meanings of a planet, applied the same way to every chart, work best as supporting evidence.

Questions about the sutras

What is a sutra in Vedic astrology?

A sutra is a short, precise statement of a principle. In Jyotish, the classical authors wrote their teachings as shlokas, Sanskrit verses that often pack several conditions into a few lines. LotusAstro restates each one as a plain sutra: which planet, which house or sign, which dasha period, and what result it predicts. Stated this way, a sutra can be checked against real lives.

Which classical texts do the sutras come from?

Mainly from the Parashari tradition: Brihat Parashara Hora Shastra (BPHS) and Laghu Parashari, with Phaladeepika, Uttara Kalamrita, Saravali and Jataka Parijata. Each sutra names the text it comes from, and where the texts disagree the difference is noted. See the classical texts.

How is a sutra tested?

The sutra is written down before any chart is examined. It is then applied to charts with accurately recorded birth times and dated life events, such as a marriage, a move or a change of career. Each time the sutra applies, the result is recorded as a hit or a miss. The grade reflects how often it holds, and across how many charts. The full approach is set out in the methodology.

Why would a classical rule not hold?

Most classical sutras were never meant to stand alone. A placement can be strengthened or cancelled by its sign, its lord, the divisional charts and the running dasha. A sutra that fails on its own may hold once those conditions are added, which is why some are graded Conditional rather than set aside.

Which sutras matter most for marriage?

Those concerning the 7th house and its lord, Venus (and Jupiter in a woman’s chart, in the classical view), the Navamsa (D9) chart, and the dasha and transit periods that time marriage. These are the next group to be tested, ahead of the Marriage Report.