What Is a Kundli? How a Vedic Birth Chart Is Built and Read

What goes into a kundli

A kundli needs exactly three facts: your date of birth, the time of birth as precisely as you know it, and the place. The date fixes the slow-moving planets. The time and place together fix the Lagna — the sign rising in the east — and the Lagna is what turns a list of planetary positions into a chart about one person.

From those inputs the calculation produces the sidereal longitude of nine grahas (Sun, Moon, Mars, Mercury, Jupiter, Venus, Saturn, Rahu and Ketu), the degree of the Lagna, the nakshatra each planet occupies, and from the Moon's nakshatra a timeline of planetary periods called dashas.

Signs, houses and why they are different things

The zodiac is divided into twelve signs (rashis) of 30° each. Houses (bhavas) are also twelve, but they are counted from the Lagna. In the whole-sign system used by most Vedic astrologers — and by Astronaad — the sign that contains the Lagna is the first house, the next sign is the second house, and so on round the zodiac.

So a sign tells you the style in which a planet behaves; a house tells you the area of life it acts on. "Jupiter in Cancer" is a statement about strength. "Jupiter in the 10th house" is a statement about career. A kundli always gives you both at once.

Reading a North Indian chart

The North Indian chart is the diamond-in-a-square layout. Its houses never move: the top central diamond is always the first house, and the houses run anticlockwise from there. What changes from person to person are the numbers written in each box — those numbers are the signs. If the top diamond holds the number 5, your Lagna is Simha (Leo), the fifth sign.

To read it, find the number in the top diamond to learn the Lagna, then read each planet as "in the house where it is drawn, in the sign whose number is written there".

Reading a South Indian chart

The South Indian chart is a square of twelve boxes around an empty centre, and here it is the signs that never move. Meena (Pisces) is always the top-left box, Mesha (Aries) the box to its right, and the signs continue clockwise. The Lagna is marked in whichever box it falls — usually with a diagonal line or the letters "As" or "Lg".

To read it, find the marked box, call that the first house, and count houses clockwise. An East Indian layout, also sign-fixed, is used in Bengal and Odisha. All three draw the same chart; only the picture differs.

A sensible order for reading your own chart

• Find the Lagna and note which planet rules that sign — the Lagna lord carries the whole chart.
• Find the Moon: its sign is your rashi and its nakshatra is your birth star.
• Note which houses hold planets, and which are empty. An empty house is not a weak house; look at where its lord sits instead.
• Check each planet's dignity — exalted, in its own sign, or debilitated.
• Check aspects. Every planet aspects the seventh house from itself; Mars also aspects the 4th and 8th, Jupiter the 5th and 9th, Saturn the 3rd and 10th.
• Only then look at timing: which mahadasha and antardasha are running today.

This order matters because the same planet means different things in different charts. Mars is the single most helpful planet for a Cancer or Leo Lagna, where it rules both a kendra and a trikona, and a far more demanding one for a Gemini or Virgo Lagna, where it rules harder houses.

How accurate does the birth time need to be?

The Lagna moves about one degree every four minutes, and changes sign roughly every two hours. A birth time that is right to within ten or fifteen minutes almost always gives the correct Lagna sign and house placements. Finer tools — the Navamsa and other divisional charts — are more sensitive, and can change within a quarter of an hour.

If you only know that you were born "in the morning", a chart can still tell you your Moon sign, nakshatra and planetary dignities reliably. It simply cannot be trusted for house-based statements.

Frequently asked questions

What is the difference between a kundli and a horoscope?

In everyday use they mean the same thing. Strictly, the kundli is the chart itself — the diagram of planets, signs and houses at birth — while a horoscope is the interpretation or forecast drawn from it.

Can a kundli be made without a birth time?

Partly. The date alone fixes the planets' signs, the Moon's nakshatra on most days, and planetary dignities. Without the time you cannot fix the Lagna, so the houses — and everything that depends on them — remain unknown.

Why does my Vedic chart show a different sign from my Western one?

Vedic astrology measures against the fixed stars (the sidereal zodiac) while Western astrology measures from the spring equinox (the tropical zodiac). The two are currently about 24° apart, so most positions fall one sign earlier in a Vedic chart.

Is the North Indian chart different from the South Indian chart?

No — they are two drawings of the same sky. The North Indian chart keeps the houses fixed and writes the signs as numbers; the South Indian chart keeps the signs fixed and marks where the Lagna falls.

Which house system does Astronaad use?

Whole-sign houses with the Lahiri ayanamsa, the combination most widely used in Vedic astrology. The sign containing the Lagna degree is the first house in its entirety.

How this guide was written

The reference tables on this page are generated from the same data Astronaad’s calculators run on, so the guide and the tools cannot disagree. Where classical authorities differ, the text says so and names the convention Astronaad follows. Astrology is a traditional system of interpretation: nothing here is medical, legal or financial advice. Spotted an error? Tell us.

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