Astroyana research · doshas
How common are the doshas, really?
Kaal Sarp, Manglik and Sade Sati cause considerable worry, but their base rates are rarely stated. We computed 100,000 birth charts with our astrology engine and counted each pattern. The results put them in proportion. This synthetic study uses no real user data and measures the mathematical base rate per birth moment.
5.5%
have a full Kaal Sarp Dosha
28%
are Manglik after classical Bhanga cancellation
6.8%
are Manglik from both the Lagna and the Moon, uncancelled (the rule’s top severity)
24.8%
synthetic charts in Sade Sati on 2026-06-03
Full Kaal Sarp Dosha is uncommon
A full Kaal Sarp places every classical planet on one side of the Rahu–Ketu axis, making it a demanding condition. It appeared in 5.5% of charts. Another 1.2% met the engine’s softened form because a planet was within 5° of a node; this is an engine convention, not a claim of classical Bhanga. Another 93.3% had none. This is roughly one full case in 18 charts. Both directions are counted: planets running from Rahu to Ketu, and the reverse form running from Ketu to Rahu, which the engine names Kala Amrita Yoga.
- No Kaal Sarp93.3%
- Softened (engine convention)1.2%
- Full5.5%
Among the charts that do have it, the 12 named types — each defined by the house Rahu sits in — are split fairly evenly:
Read more on the 12 Kaal Sarp types.
Manglik: condition, cancellation and net rate
Under the matchmaking rule, the Manglik condition applies when Mars occupies the 1st, 4th, 7th, 8th or 12th house counted from the Lagna or the Moon. After its source audit against BPHS Ch.37 the engine no longer counts the 2nd house or reckons from Venus, the broader folk variants. The rule is met in 66% of charts. Classical Bhanga rules cancel it about 57.5% of the time, leaving a net rate of 28%. Only 6.8% are afflicted from both the Lagna and the Moon and left uncancelled; with two reference points the rule’s severity caps at “medium”, so there is no “high” tier any more.
More on how Manglik dosha is cancelled, or check your own chart.
Sade Sati: the synthetic sample on 2026-06-03
Because Saturn occupies one sign at a time, Sade Sati (Saturn in the 12th, 1st or 2nd from the natal Moon) affects roughly three of the twelve Moon signs at once. As of 2026-06-03, 24.8% of charts were in Sade Sati — split roughly evenly across the 12th, 1st and 2nd houses from the Moon. This dated synthetic sample does not estimate today’s population prevalence or test life outcomes.
A further 8.3% have Saturn in the 4th house from the Moon and 8.4% in the 8th, the transits popularly called Dhaiya and Ashtama Shani. The engine reports these by house, and the Sade Sati split by house rather than by “ascending, peak, descending”, because neither set of names has a located printed source; the 12th/1st/2nd geometry is the only Saturn-from-Moon rule it classifies. See how much of a whole life this adds up to in how many years Saturn transit spans cover.
Your Moon sign and nakshatra are roughly a coin toss
As a check on the method, the Moon falls into each of the twelve signs about evenly, and into each of the 27 nakshatras between 3.6% and 3.8% — close to the 3.7% you would expect if all were equally likely. No sign is rarer or “more special” than another.
Explore the 27 nakshatras.
What this means
The three patterns have different rates in this synthetic sample: full Kaal Sarp is rare, net Manglik is measured after applicable cancellations and exceptions, and Sade Sati status is measured on 2026-06-03. These rates do not measure the severity of any individual’s experience. An actual chart calculation is needed for an applicable finding.
Methodology
Synthetic study — no real user data. Birth moments are sampled uniformly across the date range and clock; birthplaces are sampled across major Indian cities weighted by population. Percentages are the mathematical base rate per birth moment, not a population census. Reproducible from the committed script with the fixed seed. Sade Sati = Saturn in the 12th, 1st or 2nd house from the natal Moon (the engine's only source-supported Saturn-from-Moon classification). Shares are reported by house, not by the popular 'ascending / peak / descending' phase names. Saturn in the 4th and 8th from the Moon is likewise reported by house; the popular labels Dhaiya (Kantaka Shani) and Ashtama Shani are oral-tradition conventions with no located printed śloka, so the engine does not emit them.
With N=100,000 the 95% Monte-Carlo half-width of a published percentage is ±0.31 points near 50% and ±0.14 points near 5%. That is the uncertainty of the base rate itself; because the seed is fixed, re-running the script on the same engine reproduces every figure exactly.
- Sample size
- 1,00,000 charts
- Birth date range
- 1950-01-01 to 2009-12-31
- Timezone
- IST (UTC+5:30)
- Birth hour
- uniform
- Locations
- population-weighted across 25 major Indian cities
- Ayanamsa
- lahiri
- Nodes
- mean
- House system
- whole_sign
- Transit date
- 2026-06-03
- Engine version
- 0.14.0
- Engine commit
- 8cff3aad679b
- Swiss Ephemeris
- 2.10.03 (pyswisseph 2.10.3.2)
- Precision (95%)
- ±0.31 pp
- Generated on
- 2026-10-10
- Dataset revision
- 2
- Seed
- 20260603
FAQ
How common is Kaal Sarp Dosha?
In a sample of 100,000 computed charts, a full Kaal Sarp (all seven planets between the Rahu–Ketu axis) appeared in only 5.5%, with a further 1.2% softened by the engine’s node-conjunction convention. 93.3% had no Kaal Sarp at all. A full case is therefore much rarer than common fear-based claims suggest.
How common is Manglik (Mangal) Dosha?
The matchmaking rule (Mars in the 1st, 4th, 7th, 8th or 12th house from the Lagna or the Moon) is met in 66% of charts, but classical Bhanga cancellation clears 57.5% of those. The net rate is 28%, and only 6.8% are afflicted from both the Lagna and the Moon with no Bhanga cancellation, the highest severity the matchmaking rule assigns.
What share of synthetic charts was in Sade Sati on the study date?
As of 2026-06-03, 24.8% of synthetic charts were in Sade Sati. This dated snapshot does not estimate today’s population prevalence. This is close to the expected three-of-twelve Moon signs because Saturn occupies one sign at a time.
Is this based on real people?
No. It is a synthetic study: birth moments are sampled mathematically and computed with our astrology engine. No real user data is used or stored — only aggregate percentages.
Free to cite with attribution to Astroyana. Figures are the mathematical base rate per birth moment from a synthetic sample, computed with our Swiss-Ephemeris (Lahiri) engine — not a survey of real people, and not a claim about anyone’s life.