Arudha Lagna

What this page adds to the calculator above

The calculator above gives you three things: a sign, a house number, and one sentence. This long-form explains where the rule comes from, what the engine does with your chart line by line, which results are possible and which are not, and what the classical text goes on to read from the Arudha Lagna once it has been found. It also marks the edge of the tool clearly: the count is implemented exactly, but most of what Brihat Parashara Hora Shastra builds on top of it is not scored here, and this page says which parts and why.

If you have not yet found your rising sign, start with the Lagna calculator, because the Arudha Lagna is derived from it and cannot exist without it. If you want the same count for every house rather than the first alone, the Bhava Padas calculator runs it twelve times.

The classical source: BPHS Chapter 29

The Arudha Lagna is defined in Brihat Parashara Hora Shastra, Chapter 29, titled Bhava Padas. The chapter opens with Parashara telling Maitreya that he will describe the Padas, also called Arudhas, for the Bhavas and for the Grahas, 'as laid down by the earlier Maharishis' (Ch. 29, Sloka 1-3). So the text presents the method as inherited, not as its own invention.

The definition takes one sentence. The Pad of the Lagna is the sign reached by counting as many signs from the Lagna lord as the lord is away from the first house. The text then adds that the Padas of the other houses are found the same way through their own lords, and that the word 'Pad' used alone means the Pad of the Lagna. That last remark matters when you read the rest of the chapter: wherever a verse says 'from Pad' or 'from Lagn Pad', it means the Arudha Lagna.

The same slokas name all twelve. In the translation's spelling they are Lagn Pad for the first house, Dhan for the second, Vikram (or Bhratru) for the third, Matru (or Sukh) for the fourth, Mantra (or Putr) for the fifth, Rog (or Satru) for the sixth, Dar (or Kalatr) for the seventh, Maran for the eighth, Pitru for the ninth, Karm for the tenth, Labh for the eleventh and Vyaya for the twelfth. This site uses those names, with one change: the eighth is labelled Transformation Pada in the app, in line with how the eighth house is described everywhere else here.

What the text does not say

Chapter 29 never stops to define what a Pad signifies. It gives the arithmetic, then the exceptions, then goes straight to effects: what follows when the eleventh, twelfth, seventh or second sign counted from the Lagn Pad is occupied or aspected. Reading the Arudha Lagna as how a person's image and circumstances appear to others is the working convention this app follows, and the engine's own comment labels it that way. It is an interpretation of how the chapter uses the Pad, mostly for visible, countable things such as gains, expenses, standing and the outward state of a marriage. It is not a quotation, and this page does not present it as one.

Parashara and Jaimini

The calculator sits in the Jaimini group on this site, next to Char Karakas, Karakamsa, Argala and Chara Dasha. The rule it implements, however, is cited from BPHS, where these techniques occupy Chapters 29 to 33. The translator's notes in Chapter 30 say outright that one of the slokas there corresponds to 'an identical Sutra from Jaimini' and that there are 'more than two views' on how to read it. The two bodies of teaching overlap, and where they do, this site quotes the chapter and sloka in BPHS so that every statement can be checked on the sources page.

The two exceptions, and a third sentence that needs no code

Slokas 4-5 of Chapter 29 restrict where a Pad may fall. A house, or the seventh from it, does not become its own Pad. If the count lands on the house itself, the tenth from that house is taken. If the count lands on the seventh from the house, the fourth from the original house is taken.

The same passage ends with a third sentence: if the ruler of a house is in the fourth from that house, the very house it occupies is noted as the Pad. This looks like an extra rule, but it is a consequence of the second exception. A lord in the fourth house is four signs away counting inclusively. Four signs counted again from the fourth reaches the seventh. The seventh is not allowed, so the fourth is taken, and the fourth is exactly where the lord is sitting. The engine has no separate branch for this sentence, and a sweep of every possible chart confirms it does not need one: a Lagna lord in the fourth house always returns the fourth house.

These exceptions are the commonest reason two tools disagree. A tool that skips them will sometimes report the Arudha Lagna in the rising sign itself or in the seventh from it. Under the BPHS rule as written, and in this engine, that cannot happen.

How the engine computes it, step by step

Everything starts from the chart. Positions are computed for your birth instant and converted to sidereal longitude with the Lahiri ayanamsa; the ayanamsa calculator shows the offset for any date and the methodology page describes the astronomy and its limits. The rising sign is found from the birth time and the coordinates of the birth place. From there the Arudha count uses whole signs only. No degree enters the arithmetic.

1. 1.Take the rising sign as house 1 and look up its lord in a fixed rulership table: Mars for Aries and Scorpio, Venus for Taurus and Libra, Mercury for Gemini and Virgo, the Moon for Cancer, the Sun for Leo, Jupiter for Sagittarius and Pisces, Saturn for Capricorn and Aquarius.
2. 2.Find the sign that lord occupies in your chart.
3. 3.Measure the distance from the rising sign to the lord's sign. Internally this is a number from 0 to 11, where 0 means the lord sits in the Lagna itself. In the classical inclusive count the same distance is called the 1st to the 12th.
4. 4.Move that same distance forward again from the lord's sign. The sign reached is the raw Pada.
5. 5.Apply the exceptions. If the raw Pada is the rising sign, replace it with the tenth sign from the Lagna. Otherwise, if it is the seventh sign from the Lagna, replace it with the fourth.
6. 6.Report the final sign and its house number counted from the rising sign.
7. 7.Attach the note. The function holds two sentences: one for a Pada in the first house, and one for any other house, which names the house by its ordinal.

Every possible outcome

Because the count depends only on which house the Lagna lord occupies, the whole behaviour of the calculator fits in twelve rows. The table below was produced by running the engine across all twelve rising signs with the lord placed in each of the twelve signs in turn. The rising sign makes no difference to the house that comes back; only the lord's house does.

Three things follow from the table, and none of them is obvious from the one-line definition.

• Only six houses are possible. In this engine the Arudha Lagna falls in the 3rd, 4th, 5th, 9th, 10th or 11th house from the Ascendant and never in the 1st, 2nd, 6th, 7th, 8th or 12th. Doubling a distance always produces an odd-numbered house, and the two exceptions then convert the 1st and 7th into the 10th and 4th.
• Each result has two causes. A lord in any house and a lord in the house opposite it give the same Arudha Lagna: the 2nd and the 8th both give the 3rd, the 6th and the 12th both give the 11th, and so on. Knowing your Arudha house therefore narrows the Lagna lord to two houses, not one.
• The first of the engine's two note sentences is unreachable for the Arudha Lagna. It is written for a Pada in the first house, which the exceptions rule out. Every real result carries the second sentence, with the house ordinal filled in.

The other eleven Padas are not confined in the same way when their houses are counted from the Ascendant, because their exceptions are measured from their own house. That is why the Bhava Padas table can show a Pada in your first house while the Arudha Lagna cannot be there.

Worked example with real engine output

The sample on this page is a birth on 14 August 1994 at 06:42 in Ahmedabad. Running the engine for that instant gives an Ascendant of Leo at 2.33 degrees. Leo's lord is the Sun, and the Sun is in Cancer at 27.26 degrees.

1. 1.From Leo to Cancer is eleven signs forward, the 12th in the inclusive count. The Lagna lord is in the 12th house.
2. 2.Eleven signs forward again from Cancer is Gemini.
3. 3.Gemini is neither Leo nor Aquarius, the seventh from Leo, so no exception applies.
4. 4.Gemini counted from Leo is the 11th house. The engine returns sign Gemini, house 11.

That agrees with the twelfth row of the table: a lord in the 12th gives an Arudha Lagna in the 11th. The note returned is the standard one, saying the Arudha Lagna falls in the 11th house and that the way others perceive image and circumstances leans toward that house's themes, distinct from the actual Ascendant.

The same day, hour by hour

To show how the result moves with the rising sign, the engine was run for the same date and place every two hours. The grahas barely change sign across one day, so almost all the variation below comes from the Ascendant alone.

Two rows show the exceptions at work. At 06:00 Cancer rises and the Moon is in Libra, the 4th house. The raw count reaches Capricorn, the 7th from Cancer, so the engine takes the 4th instead and returns Libra, the sign the Moon is in, exactly as the third sentence of Sloka 4-5 says. At 20:00 Aquarius rises with Saturn in Aquarius. The raw count lands back on the Lagna, so the 10th is taken and the result is Scorpio.

Notice also that Leo appears four times as the Arudha Lagna, in the 5th, 3rd, 11th and 9th houses for different rising signs. A sign on its own tells you little. The sign together with the house it holds from your Ascendant is the result.

How to read each of the six possible results

The calculator's note points to 'that house's themes' without listing them. For the themes themselves, BPHS gives a compact list in Chapter 31, Sloka 11-17, where it states what each Bhava denotes when it is strengthened. The table below sets those against the six houses the Arudha Lagna can occupy, together with the classification the app uses when it compares the Arudha Lagna with the Ascendant in the signed-in Kundali.

Read the row for your result as a pointer to the area of life through which your circumstances tend to be seen, and then go to the house itself for the detail. The learn pages on the 3rd house, 4th house, 5th house, 9th house, 10th house and 11th house carry the full classical material for each.

Kendra and Trikona results: the 4th, 5th, 9th and 10th

When the Arudha Lagna is in an angle or a trine from the Ascendant, the Kundali's comparison line says that people's read of you broadly supports who you actually are. The reasoning is positional. Angles and trines are the houses a chart treats as standing with the Lagna, so an image located there is treated as working alongside the person. Note which charts produce this. The 10th-house result belongs only to charts where the Lagna lord is in the 1st or the 7th, and the 4th-house result only to charts where it is in the 4th or the 10th. In other words, every chart with its Lagna lord in a Kendra gets an Arudha Lagna in a Kendra, and both of those always pass through an exception.

The 3rd and 11th results

When the Arudha Lagna is in the 3rd or the 11th, the comparison line says people's read of you can meaningfully differ from who you actually are. These are the results that come from a Lagna lord in the 2nd, 6th, 8th or 12th house. The wording is a statement about distance between two reference points, not a judgment of the person and not a warning. The 11th in particular is the house BPHS ties to gains, and the same chapter treats the 3rd and 11th from a Pad as a favourable mutual position in Sloka 30-37. So the engine's classification and the classical verses are measuring different things, and it is worth keeping both in view.

What BPHS goes on to read from the Arudha Lagna

Finding the sign is the first three slokas of a chapter with thirty-seven. The rest treats the Arudha Lagna as a second starting point and counts houses from it, in the way houses are normally counted from the Ascendant. None of the following is scored by this calculator. It is set out here so that you know what the result is for, and can locate the relevant signs in your own chart.

The 11th and 12th from the Arudha Lagna: gains and expenses

Sloka 8-11 says that if the 11th from the Lagn Pad is occupied or aspected by a Grah, the native will be happy and rich. A benefic there brings wealth by various means, a malefic by questionable means, a mixture by both; and a Grah in exaltation or its own sign there increases gains. Sloka 12 adds a condition that is easy to miss: gains are uninterrupted when the 11th from the Pad is aspected while the 12th from the Pad is not. Sloka 13-15 says the quantity of gains corresponds to the number of Grahas in or aspecting that 11th, that Argala on it adds more, and that throughout, the 12th from the Pad should be free of malefic association.

The 12th from the Pad is then read for outflow. Sloka 16-17 says that when both benefics and malefics are joined to it, earnings are abundant but so are expenses. Sloka 18-21 goes Grah by Grah: the Sun, Venus and Rahu together there point to loss through the ruler; Mercury there with a benefic to expenses through paternal relatives, and with a malefic to loss through disputes; Jupiter there to expenses through taxes and on oneself; Saturn with Mars to expenses through co-born. Sloka 22 turns the list around: the same sources become sources of gain when the 11th from the Pad is so placed.

The 7th and 2nd from the Arudha Lagna

Sloka 25 says that one, two or all three of Jupiter, Venus and the Moon in the 7th from the Lagn Pad make the native very wealthy, and Sloka 26 that any Grah exalted there, benefic or malefic, gives affluence and fame. Sloka 27 extends these to the 2nd from the Pad, and Sloka 28 adds that Mercury, Jupiter or Venus exalted and strong in the 2nd makes the subject rich. Sloka 30 gives Mercury in the 2nd from the Arudha Lagna lordship over the whole country and Venus there the gifts of a poet or speaker. The same passage contains bodily and health statements about the nodes in the 7th from the Pad. This site reports that they exist and does not apply them; they are not medical advice and no calculator here prints them.

Grahas in the Arudha Lagna itself

The statements about occupants appear at the end of Chapter 30. Sloka 39 says Mercury in the Lagn Pad makes one lord over a country, Jupiter a knower of all things, and Venus a poet or speaker. Sloka 38 says Rahu in the 7th or 12th from the Lagn Pad gives spiritual knowledge and good fortune. The text names no result for the Sun, Moon, Mars or Saturn in the Lagn Pad, and this page does not supply one.

The Arudha Lagna and the Dar Pada

Sloka 30-37 compares two Padas: the Lagn Pad and the Dar Pad, the Pada of the seventh house. If the Dar Pad falls in an angle or trine from the Lagn Pad, or both hold strong Grahas, the text speaks of wealth and fame; if it falls in the 6th, 8th or 12th from it, of poverty. Mutual angles or trines mean amity between husband and wife; mutual 6th, 8th or 12th means enmity. The chapter then generalises: the relationship with a son, or with any other matter, is to be judged from the Lagn Pad and the Pada of the relevant house in the same way, and the Lagn Pad and Dhan Pad are to be compared likewise. You can make this comparison yourself with the Bhava Padas table by counting from the first row to any other.

Two cross-references elsewhere in the text

• Karakamsa. Ch. 29, Sloka 29 says every yoga stated from the Lagn Pad should be evaluated in the same way from the Karakamsa. The Karakamsa calculator finds that sign.
• Argala. Ch. 31, Sloka 11-17 says that Argala on the Arudh Pad, on the natal Lagna and on the 7th from both makes the native famous and fortunate. The Argala calculator reports Argala for the twelve houses from the Ascendant; it does not run a separate pass from the Arudha Lagna.

Locating those signs in the sample chart

For the sample, the Arudha Lagna is Gemini. The engine places Mars in Gemini, the Sun and Mercury in Cancer, Venus in Virgo, the Moon, Jupiter and Rahu in Libra, Saturn in Aquarius and Ketu in Aries. Counting from Gemini:

• The Arudha Lagna itself holds Mars. BPHS names results only for Mercury, Jupiter and Venus there, so the text is silent on this placement.
• The 2nd from it is Cancer, holding the Sun and Mercury. Mercury in the 2nd from the Arudha Lagna is the placement of Sloka 30. Mercury is in Cancer, not in its exaltation sign, so the stronger condition of Sloka 28 is not met.
• The 7th from it is Sagittarius, which is empty, so Sloka 25-26 has nothing to work on by occupation.
• The 11th from it is Aries, holding Ketu, and the 12th from it is Taurus, which is empty. The first condition of Sloka 8-11 is met by occupation; what kind of gain the text would name depends on the nature of the Grah and on aspects, which this exercise has not assessed.
• The Dar Pada for this chart is Scorpio, the 6th sign from Gemini. That is one of the positions Sloka 30-37 reads unfavourably.

This is the honest state of a verse-by-verse reading: one line points one way and another points the other. Phrases such as 'lord over the whole country' are the idiom of the text for standing and prominence, not a forecast, and a single placement is never a verdict. Whether any of it shows in a life depends on the strength of the Grahas involved and on timing, which is what the Vimshottari Dasha and Gochar calculators are for. That is also why this calculator stops at the sign and the house instead of printing a conclusion.

The Upa Pada: the companion Pada

Chapter 30 opens by repeating that the Pad of the Lagna is of prime importance and then introduces a second one, the Upa Pad or Gaun Pad, said to bear on happiness from spouse and children (Ch. 30, Sloka 1-6). It is calculated for the house 'following' the Lagna, and the translator's notes record that authorities read this more than two ways. The resolution given there, and followed by this engine, is that the 12th house is used when an odd sign rises and the 2nd house when an even sign rises. The Upa Pada is therefore just the Vyaya Pada or the Dhan Pada of your chart, chosen by the rising sign, with the exceptions of Chapter 29 applied as usual.

For the sample, Leo is an odd sign, so the 12th house is used. Its Pada is Libra, the 3rd house from the Ascendant. In the signed-in Kundali this appears beside the Arudha Lagna, with a line comparing it to the seventh house; for the sample the engine describes the 3rd house as standing in a Trikona relationship to the 7th. The public calculators do not have a separate Upa Pada page, but the Bhava Padas table contains both candidate rows. Sloka 23 of the same chapter says these effects are to be deduced from the natal Lagna, the Lagn Pad, the seventh from each, the Upa Pad and their lords together, which is a reminder that no single one of them is meant to be read alone.

Limits and birth-time sensitivity

The rising sign decides almost everything

The Arudha Lagna uses whole signs, so it does not drift by a few minutes of birth time the way a degree-based result does. It is either unchanged or completely different. Within one rising sign it stays fixed for as long as the Lagna lord stays in the same sign. When the rising sign changes, the lord changes, the distance changes, and the result jumps.

The sample chart shows how sharp this is. The engine was run for the same date and place at ten-minute steps. At 06:22 the Ascendant is Cancer at 27.85 degrees, the Lagna lord is the Moon in the 4th house, and the Arudha Lagna is Libra in the 4th house. At 06:32 the Ascendant is Leo at 0.09 degrees, the lord is the Sun in the 12th, and the Arudha Lagna is Gemini in the 11th. The recorded time of 06:42 is only about ten minutes past that boundary. From 06:32 the result holds steady at Gemini until 08:42; at 08:52 Virgo is rising and it becomes Taurus in the 9th house.

So a birth time that is accurate to within a quarter of an hour is safe for most of a rising sign's span of roughly two hours and unsafe near either end. If your Ascendant degree is within two or three degrees of the start or end of its sign, compute the result for a time ten minutes earlier and ten minutes later and see whether it moves. Birth time unknown explains what can and cannot be recovered when the time is uncertain.

The lord's sign matters too

The second input is the sign of the Lagna lord. For most rising signs that lord moves slowly enough that the birth date settles it. Cancer rising is the exception: its lord is the Moon, which changes sign about every two and a quarter days, so on a day when the Moon crosses a sign boundary the Arudha Lagna for a Cancer Ascendant can change within the day even though the rising sign has not. A graha within a fraction of a degree of a sign boundary is also the one place where a different ayanamsa can change this result, because the ayanamsa decides which sign the graha is counted in.

What the tool will not do

• It will not run without a birth time and place. The calculator requires an Ascendant, and the engine function returns nothing when the chart has none. A date alone cannot produce this result.
• It does not weigh strength. BPHS repeatedly qualifies its Pad verses with exaltation, own sign, and strong Grahas. The calculator reports position only.
• It does not count houses from the Arudha Lagna, check occupants or aspects, or evaluate Argala on it. Those readings are described above so that you can make them, but they are not automated on this page.
• It describes perception as a convention. The sentence about how others perceive your image is this app's framing of the Pad, not a measurement of anyone's opinion of you.

Where the Arudha Lagna appears elsewhere in the app

The same function feeds three other places. In the signed-in Kundali the Jaimini section shows the Arudha Lagna with its note, followed by two comparison lines: one placing it against the Ascendant and one placing the Upa Pada against the seventh house. For the sample the first line reads that the public image in Gemini sits 11 houses from the actual Ascendant in Leo, a Panapara relationship. The same section lists all twelve Bhava Padas, the Graha Padas and the Argala table, since these belong to one body of technique.

The AI Life Chat receives the Arudha Lagna's sign and house as part of the chart context it is grounded in, alongside yogas, doshas, planetary strength, the Navamsa and the birth nakshatra. It is given the computed values, not free rein to invent a reading. And the Bhava Padas calculator's first row is this calculator's result by construction, because both call the same routine for house 1.

Frequently asked questions

Which houses can the Arudha Lagna fall in?

In this engine, only the 3rd, 4th, 5th, 9th, 10th and 11th from the Ascendant. Counting the lord's distance twice always produces an odd-numbered house, and the two exceptions of BPHS Ch. 29, Sloka 4-5 convert a 1st-house result to the 10th and a 7th-house result to the 4th. A sweep of all 144 combinations of rising sign and lord position confirms that the 1st, 2nd, 6th, 7th, 8th and 12th are never returned.

Why does another site give me a different Arudha Lagna?

There are four usual causes. The other tool may skip the exceptions and report the rising sign or its seventh. It may count Scorpio through Ketu or Aquarius through Rahu, where this engine uses Mars and Saturn. It may use a different ayanamsa, which matters only when the Ascendant or the Lagna lord is very close to a sign boundary. Or the two tools may disagree on the rising sign itself because of the birth time or timezone entered. Check the Lagna first, since everything follows from it.

Will a few minutes' error in my birth time change the result?

Usually not, and occasionally completely. The count uses whole signs, so the result is constant across a rising sign and jumps when the rising sign changes. In the sample chart the result is Libra in the 4th house at 06:22 and Gemini in the 11th house at 06:32, then stays Gemini for a little over two hours. If your Ascendant is within a few degrees of a sign boundary, test a time ten minutes either side.

Can I get an Arudha Lagna without a birth time?

No. The calculator needs an Ascendant, and without a time and place there is none. Other results on this site do work from a date alone; Birth time unknown lists which ones and how reliable each is.

Does the Arudha Lagna tell me how rich or famous I will be?

No. BPHS reads gains from the 11th sign counted from the Arudha Lagna and expenses from the 12th, and it qualifies every statement by which Grahas are involved, whether they are benefic or malefic, how strong they are, and whether the opposing house is clear. Those verses describe conditions, not outcomes, and this calculator does not evaluate them. It reports where the Arudha Lagna is; it makes no forecast.

Does the result change over my life?

No. It is fixed by the birth chart. What changes is timing: which period you are in and where the grahas are transiting now. Those are shown by the Vimshottari Dasha, Chara Dasha and Gochar calculators and brought together in the timing feature.