Check Kaal Sarp Dosh (Kaal Sarp Yog) from date, time, and place of birth. The tool tests whether all seven classical planets are hemmed on one side of the Rahu-Ketu axis, reports complete (purna) vs partial (anshik) and Rahu-leading vs Ketu-leading, names the 12-type by Rahu house, and shows an honest computed base rate - using sidereal Lahiri ayanamsa, the same engine as our Kundli generator.
100% private - the Kaal Sarp calculation runs entirely in your browser. No birth data sent anywhere.
Supports 1900 onwards for better calculation reliability.
Birth time and place are both needed: the Rahu-Ketu axis check uses your planet longitudes, and the 12-type label is read from Rahu's house, which depends on your Lagna.
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astrology| Axis | Rahu-Ketu (the lunar nodes), 180 degrees apart |
| Complete vs partial | All 7 on one side = complete (purna); exactly one outside = partial (anshik) |
| Orientation | Rahu-leading = Kaal Sarp; Ketu-leading = Kala Amrita (a modern-source nuance) |
| 12 types | Named by Rahu’s house from Lagna (house 9 dual-named) |
| Base rate (of sampled instants) | All seven on one side (complete) about 7%, classified separately as Kaal Sarp 3.2% + Kala Amrita 3.8%; partial (anshik) about 25.8%; neither about 64.7% |
| Status | Modern / post-classical and contested; not in the foundational classical texts |
| “Most dangerous” type | No consistent, sourced ranking exists |
| “How long” | A natal placement has no computed expiry |
| Engine | Meeus VSOP87; Lahiri ayanamsa; Rahu = mean node (same as Kundli) |
| Privacy | 100% client-side; no birth data leaves the browser |
Kaal Sarp Dosha (also Kaal Sarp Yog) describes a birth chart in which all seven classical planets - Sun, Moon, Mars, Mercury, Jupiter, Venus, and Saturn - fall within one of the two semicircles formed by the Rahu-Ketu axis, the line joining the Moon’s north and south nodes. In the image the tradition uses, the planets are caught between the serpent’s head (Rahu) and tail (Ketu).
It is worth saying clearly up front: Kaal Sarp is a modern, post-classical idea. It is not found in the foundational classical texts of Jyotisha (Brihat Parashara Hora Shastra, Saravali, Prashna Marga); Rahu and Ketu are classical, but this particular configuration is a later addition, popularized relatively recently. It is called both a yog and a dosh, with dosh (affliction) being the popular framing that drives the remedy economy. This tool stays neutral: it reports the configuration and does not prescribe remedies.
Complete (purna) Kaal Sarp means all seven classical planets sit on one side of the axis. If even one planet falls outside that arc, the complete yoga does not form. When exactly one planet is outside, some traditions call it partial (anshik). The partial convention is genuinely unstandardized - definitions disagree, there is no agreed orb, and some schools, including DrikPanchang, do not recognize partial Kaal Sarp at all. This tool computes anshik but flags that caveat rather than presenting it as settled.
Direction also matters to some sources. The standard Kaal Sarp has Rahu leading (the planets in the arc from Rahu forward to Ketu). The reverse, with Ketu leading, is named Kala Amrita Yoga by specific modern sources such as Shyamasundara Dasa, who describe it as spiritually oriented rather than simply more benefic. DrikPanchang does not make this directional distinction and treats either orientation as Kaal Sarpa, so the tool shows the orientation as a secondary label, not a verdict of its own.
The 12 named Kaal Sarp types are determined by the house Rahu occupies counted from your Lagna (ascendant), not by sign. Ketu is always the 7th house from Rahu. The mapping below follows DrikPanchang, IndAstro, and GaneshaSpeaks; house 9 carries two attested serpent names (Shankhachur per DrikPanchang and others, Shankhanaad per AstroSage), so we show both.
| Rahu house | Ketu house | Type name |
|---|---|---|
| 1 | 7 | Anant |
| 2 | 8 | Kulik |
| 3 | 9 | Vasuki |
| 4 | 10 | Shankhpal |
| 5 | 11 | Padma |
| 6 | 12 | Mahapadma |
| 7 | 1 | Takshak |
| 8 | 2 | Karkotak |
| 9 | 3 | Shankhachur / Shankhanaad |
| 10 | 4 | Ghatak |
| 11 | 5 | Vishdhar |
| 12 | 6 | Sheshnag |
No - there is no consistent, sourced ranking. Search around and you will find different sites crowning different types as the most dangerous: Mahapadma, Takshak, Anant, Karkotak, and Shankhpal are each declared the worst by some page or other, and even remedy-focused sites concede that it varies. A “most dangerous type” claim is marketing rather than an established result, so this tool deliberately does not rank the 12 types by severity. The type is a label for where Rahu sits, not a verdict about your life.
A natal placement has no computed expiry. You will see fixed end-ages quoted - 27, 33, 36, 42, and so on - but these come from a per-house belief table, not a single universal age, and they are modern, source-varying beliefs rather than computed results. The often-repeated “age 42” is really just the Rahu-in-the-4th-house row of that table. Even within the belief, the placement itself is permanent (it is fixed at birth) and only the perceived intensity is said to wane, which makes a hard end-age internally inconsistent. Because this is unsourced folk belief, the tool does not ship an end-age table.
Rather than repeat a vague claim, we computed it. We sampled 27,394 instants, one per day from 1 January 1950 to 1 January 2025, and classified each by where the seven classical planets sit relative to the Rahu-Ketu axis. Because planet and node longitudes do not depend on location, this is an incidence over sampled instants - an astronomical figure - and explicitly not a statistic about people or charts.
The takeaway: the complete configuration is uncommon, not universal - claims that almost everyone has it rely on loosened or partial criteria. Two single-source practitioner estimates (B.P. Lama) use different definitions, not a range - about 0.3% for a strict, perfect alignment and about 2% for a looser “all seven between the nodes” criterion - and are cited only as context; our committed sweep is the primary number, and the full script and output are in the repository.
Kaal Sarp is a configuration in which all seven classical planets (Sun, Moon, Mars, Mercury, Jupiter, Venus, Saturn) fall within one of the two semicircles of the Rahu-Ketu axis, that is, they are all hemmed on one side between the lunar nodes. It is called both a yog and a dosh, with dosh (affliction) being the popular framing. This tool detects the configuration, reports whether it is complete or partial, and names the 12-type, without prescribing any remedy.
No. Kaal Sarp is not found in the foundational classical texts of Jyotisha (Brihat Parashara Hora Shastra, Saravali, Prashna Marga). It is a modern / post-classical concept; some sources point to a 20th-century popularization, though we do not assert a firm origin date. Rahu and Ketu themselves are classical; the Kaal Sarp configuration is the later addition. Because of this, the page treats DrikPanchang as the named modern authority rather than citing a classical source it does not have.
Complete (purna) Kaal Sarp means all seven classical planets are on one side of the Rahu-Ketu axis. Partial (anshik) means exactly one planet falls outside that arc. Anshik is a modern partial convention whose definitions genuinely disagree across sources, and some schools, including DrikPanchang, do not recognize partial Kaal Sarp at all. This tool computes anshik but states that caveat openly.
When all seven planets are hemmed but with Ketu leading (the reverse orientation), some modern sources, for example Shyamasundara Dasa, name the configuration Kala Amrita Yoga and describe it as spiritually oriented rather than simply more or less benefic. DrikPanchang does not make this directional distinction and treats either orientation as Kaal Sarpa. This tool reports the orientation (Rahu-leading vs Ketu-leading) as a secondary label so you can see both views.
The 12 types are named by the house Rahu occupies counted from your Lagna (ascendant), not by sign. Ketu is always the 7th house from Rahu. For example, Rahu in house 1 is Anant, in house 6 is Mahapadma, and in house 12 is Sheshnag. House 9 has two attested serpent names, Shankhachur and Shankhanaad, depending on the source, so the tool shows both. Because the type depends on the house, an exact birth time and place are needed.
There is no consistent, sourced ranking. Different websites crown different types as the most dangerous (Mahapadma, Takshak, Anant, Karkotak, and Shankhpal are all claimed by different pages), and even remedy-focused sites concede it varies. A claim that a particular type is the most dangerous is marketing, not an established result, so this tool does not rank the types by severity.
A natal placement has no computed expiry. Beliefs about fixed end-ages such as 27, 33, or 42 are modern and source-varying, and they come from a per-house belief table rather than a single universal age; even believers note the placement itself is permanent and only the perceived intensity is said to wane. Because this is unsourced folk belief, the tool does not ship an end-age table and answers that there is no computed expiry.
Having all seven planets on one side (the complete configuration) is uncommon, not universal; claims that almost everyone has it use loosened or partial criteria. Our own sweep over 27,394 sampled instants (one per day, 1950 to 2025) finds the complete configuration in about 7% of instants - which the tool classifies separately as Kaal Sarp (Rahu-leading, about 3.2%) and Kala Amrita (Ketu-leading, about 3.8%) - the partial one-planet-outside pattern in about 25.8%, and neither in about 64.7%. This is an incidence over sampled instants, an astronomical figure, not a statistic about people. Two single-source practitioner estimates (B.P. Lama) use different definitions, not a range: about 0.3% for a strict, perfect alignment and about 2% for a looser "all seven between the nodes" criterion, and are cited only as context.
Yes. The Rahu-house that names your 12-type depends on your Lagna, which moves about one sign every two hours, and a planet sitting within about 0.3 degrees of a node can flip sides with a small change in birth time. When any planet is that close to a node, the tool marks the verdict provisional and lists the alternative outcomes so you know to verify your time.
No. This page is a transparent classification tool only. It reports whether the configuration is present, its type, and how common it is, and it does not prescribe remedies, pujas, gemstones, or any paid ritual. For any personal reading, consult a qualified astrologer.
For your full Vedic birth chart - all nine grahas, the D1 and D9 charts, Vimshottari Dasha, and Mangal Dosha - see the Free Kundli Generator. To screen a different chart-wide affliction, the Mangal Dosha Calculator checks Mars from Lagna, Moon, and Venus, and the Rashi Calculator returns your Janma Rashi, Lagna Rashi, Nakshatra, and Pada from the same birth details this tool uses.
scripts/kaal-sarp-base-rate.ts and its committed output) for the incidence over 27,394 sampled instants.This page is the canonical surface for the following terms across languages (use whichever your regional tradition uses; the configuration is the same):