Kaal sarp dosh (also called kaal sarp yog or kala sarpa yoga) is the name for a birth chart in which all seven visible planets, from the Sun to Saturn, sit on one side of the axis formed by Rahu and Ketu. The picture is of the planets held between the serpent's head (Rahu) and tail (Ketu). It is a popular but later tradition: it does not appear in Brihat Parashara Hora Shastra or the other foundational texts.
This guide explains the rule exactly as our engine applies it, the twelve named types, what "partial" means, where the idea comes from, and, using our own ephemeris, how common the pattern really is. The short version: it is common, it is not a curse, and nobody needs to buy anything because of it.
The rule, precisely
Rahu and Ketu are always exactly opposite each other, 180° apart. Together they split the zodiac into two halves. Take the seven grahas: Sun, Moon, Mars, Mercury, Jupiter, Venus, Saturn.
- Kaal sarp (full): all seven lie in the same half.
- Partial kaal sarp: six lie in one half and exactly one lies in the other.
- No kaal sarp: anything else.
Three details that pages often skip:
- Degrees or houses? Our engine compares exact longitudes. Some astrologers look only at houses, which gives different answers when a planet shares a sign with Rahu or Ketu: in a house-based count that planet may be treated as "inside" or "outside" depending on who you ask. This is one reason two websites can disagree about the same chart.
- Direction. Planets can be hemmed in going from Rahu to Ketu in zodiacal order, or from Ketu to Rahu. Some traditions count only the first as true kaal sarp and give the second a different, milder name (sometimes "kaal amrit"). Our kundli reports the direction so you can see which case you have.
- Uranus, Neptune and Pluto play no part. The rule uses only the seven classical grahas.
The 12 types of kaal sarp dosh
The type is named after the house Rahu occupies, counted from the lagna. Ketu is always in the seventh house from Rahu. Eight of the twelve names are the ashta-naga, the eight great serpents of Indian lore (Ananta, Kulika, Vasuki, Shankhapala, Padma, Mahapadma, Takshaka, Karkotaka); the other four were added to complete the twelve.
| Type | Rahu in house | Ketu in house | Life areas popular texts associate with it |
|---|---|---|---|
| Anant | 1st | 7th | self, health, partnerships |
| Kulik | 2nd | 8th | family, money, speech |
| Vasuki | 3rd | 9th | siblings, courage, fortune |
| Shankhpal | 4th | 10th | home, mother, career |
| Padma | 5th | 11th | children, education, gains |
| Mahapadma | 6th | 12th | health, disputes, expenses |
| Takshak | 7th | 1st | marriage, partnerships |
| Karkotak | 8th | 2nd | longevity, sudden events, family |
| Shankhchud | 9th | 3rd | father, dharma, fortune |
| Ghatak | 10th | 4th | career, reputation, home |
| Vishdhar | 11th | 5th | gains, elder siblings, children |
| Sheshnag | 12th | 6th | expenses, sleep, foreign lands |
Notice that the right-hand column is simply what the houses mean in any chart. The type name adds very little beyond "Rahu and Ketu are in these two houses", which is worth reading in every chart whether or not kaal sarp is present. Spellings vary from region to region (Shankhnaad or Shankhachood for Shankhchud, Vishakt for Vishdhar), but the order is the same everywhere.
Why the type depends on the birth time. Whether kaal sarp is present depends only on the planets, which barely move in a few hours (the Moon is the fastest). The type depends on the lagna, which changes every two hours or so. So two babies born on the same day can have the same kaal sarp and different types.
A worked example
Take a birth at 12:00 noon on 1 November 2008 in Varanasi. Our engine gives Rahu at 20°12′ Capricorn and Ketu at 20°12′ Cancer. The seven grahas run from Saturn at 24°40′ Leo to Jupiter at 22°54′ Sagittarius, all inside the half that runs from Ketu to Rahu. The lagna is Capricorn, so Rahu is in the 1st house: full kaal sarp, Anant type, Ketu-to-Rahu direction.
Now move the same birth to a different time of day and only the lagna changes, so only the type changes. Every child born in India around that date shares the pattern itself. In our samples, 9 October, 1 November and 24 November 2008 all come out as full kaal sarp.
Partial kaal sarp
When exactly one planet escapes the axis, most sources call the chart "partial" (anshik). Our engine flags it and names the planet outside. Partial cases are far more common than full ones (see the numbers below), which is worth knowing when a page tells you that you "have a partial kaal sarp". In most traditions a partial pattern is not counted as the dosha at all, and some go further and say that a single planet outside the axis, especially the Moon or a strong benefic, breaks the pattern.
Is it in the classical texts? An honest answer
No. Kaal sarp is not described in Brihat Parashara Hora Shastra, nor in Varahamihira's Brihat Jataka, Saravali or Phaladeepika, the texts on which Parashari astrology rests. Our own engine says so in its explanation whenever the pattern appears in a chart.
Two sources of confusion are worth clearing up:
- Sarpa yoga is a different thing. Among the classical Nabhasa yogas, Sarpa yoga is formed when malefic planets occupy three kendras (1st, 4th, 7th and 10th houses). It has nothing to do with Rahu and Ketu hemming in the planets.
- Rahu and Ketu are classical; this pattern is not. The nodes, their houses and their dashas are fully part of the tradition. What is later is the idea that all planets on one side of them form a special dosha.
The combination spread mainly in the 20th century and is today closely tied to a large industry of remedial pujas. Astrologers are genuinely divided: some treat it as a serious factor, others do not use it at all. We show it because people ask about it and because it is a real fact about planetary placement, and we label it plainly as a later tradition.
How common is kaal sarp dosh?
Pages often call it rare, which makes it sound special and frightening. It is not rare. We measured it.
Our method. We asked our engine for the positions of the planets at 1,491 moments spread evenly from 1930 to 2025, one every 23 days at a random hour, and applied the rule above to each.
The result.
| Pattern | Share of sampled moments |
|---|---|
| Full kaal sarp | about 7.2% |
| Partial (exactly one planet outside) | about 26.2% |
| No kaal sarp | about 66.6% |
So roughly one birth in 14 has a full kaal sarp, and about one in three has at least a partial one. The share moves from decade to decade: full kaal sarp came out under 3% of our 1990s samples and about 11% of our 1980s samples. (34 of the planned 1,525 moments could not be fetched and were simply left out; the gaps are scattered and do not favour any period.)
Why the number is this high. If the seven planets were scattered at random and independently, the chance that all fall in one half would be 2 × (½)⁷, under 2%. But they are not independent. Mercury and Venus never stray far from the Sun (at most about 28° and 47°), so the Sun, Mercury and Venus mostly travel as one group. That leaves about five "independent" bodies: the Sun group, the Moon, Mars, Jupiter and Saturn. The chance that five random bodies fall in one half is 2 × (½)⁵, about 6%, very close to what we measured.
It comes in seasons. Jupiter and Saturn move slowly, so for stretches of several months they and the Sun group can sit on one side of the nodes. During those stretches the Moon, which goes round every 27 days or so, completes the pattern for part of each month, while it is on the same side. Our samples show runs like this in parts of 1979–80, 1983, 2004, 2016 and 2020–21. Every person born in India in those weeks shares the pattern, with different types according to their lagna. A pattern shared by a large fraction of a generation cannot, on its own, spell out the fate of each individual.
Kaal sarp and Manglik: two different questions
People often meet kaal sarp and Manglik dosha on the same page of a kundli, and many assume they work the same way. They do not.
- Manglik dosha is a classical rule about one planet, Mars, and the houses it occupies from the lagna, the Moon and Venus. It is used mainly in marriage matching, and the texts give specific cancellations. Our guide to Manglik dosha walks through them.
- Kaal sarp is a later pattern about all seven planets at once, and it has no agreed cancellation rules, no agreed matching rule and no agreed reading of the two directions.
So the two should not be added together into a "double dosha", as some pages do. They come from different layers of the tradition and answer different questions. If your chart shows both, read each on its own terms, and then read the chart as a whole, which matters more than either.
A calm way to read it
If your kundli shows kaal sarp, here is a sensible way to think about it:
- It is a description, not a sentence. The same placement is found in hundreds of thousands of people, living every sort of life.
- Read Rahu and Ketu properly. Their houses, signs, dispositors and dashas matter far more than the one-side pattern. Our guide to Vimshottari dasha explains when Rahu and Ketu periods run.
- Look at the whole chart. Strong lagna lord, good yogas, a well-placed Moon: all of these are read together. No single rule outweighs the chart.
- Be wary of urgency. If someone tells you that you must pay for a ritual now or face disaster, that is a sales technique, not astrology. We do not sell remedies of any kind.
- Keep practical help first. No dosha is a medical, legal or financial diagnosis. For health, relationships or money, the right expert comes first.
If prayer, a temple visit or a family ritual brings you peace, that is your choice to make, freely and without fear. It is not something a chart requires.
Try it yourself
Make a free kundli and open the Doshas tab. It shows whether kaal sarp is absent, partial or present in your chart, the type, the direction, which planet (if any) is outside, and the exact rule used, alongside Manglik dosha and sade sati. If you would like the placement of Rahu and Ketu read in the context of your whole chart, the detailed kundli report covers it, or you can ask a specific question.