The North Indian and South Indian charts are two ways of drawing the same Vedic birth chart. The North Indian style is a diamond of twelve fixed houses, with the first house always at the top centre, the houses running counter-clockwise, and the signs written in as numbers 1 to 12. The South Indian style is a square grid of twelve fixed sign boxes running clockwise, with the rising sign marked and the houses counted from it. Draw one birth in both and every planet lands in the same sign and the same house. Neither is more correct. Learn the one your charts come in, and the other follows quickly.
This page covers the two layouts box by box. For the reading method itself, what to do with the chart once you can decode it, start with the how to read a birth chart guide.
The two styles at a glance
One table holds the whole contrast. Everything in it is unpacked below, but the single fact to fix in memory is the direction reversal: North Indian houses loop counter-clockwise, South Indian signs run clockwise.
| North Indian | South Indian | |
|---|---|---|
| Shape | Square set on its corner, a diamond of 12 compartments | 4×4 grid, the central 4 squares empty, 12 boxes around the edge |
| What is fixed | The houses | The signs |
| First house | Always the top-centre diamond | The box carrying the lagna mark |
| Direction | Houses run counter-clockwise | Signs (and house counting) run clockwise |
| Signs shown as | Numbers 1 to 12 written into the houses | The boxes themselves, one per sign, always in the same place |
| Lagna shown as | The top-centre position itself | A diagonal line or "Lagna" written in the rising sign's box |
How the North Indian chart works
The North Indian diagram is a square set on its corner and divided into twelve compartments: four diamonds down the middle and eight triangles around them. Its defining feature is that the houses are fixed in place. The first house is always the top-centre diamond, for every chart, for every birth.
From that first house, the houses run counter-clockwise: the second house is the triangle to its upper left, the third the left corner, the fourth the left-centre diamond, and so on around the wheel until the twelfth house arrives at the upper right. Once you know this loop, every house lives in the same spot forever, and you can find anyone's tenth house without counting.
The signs are then written into the fixed houses as numbers, using the standard zodiac order.
| Number | Sign | Number | Sign |
|---|---|---|---|
| 1 | Aries (Mesha) | 7 | Libra (Tula) |
| 2 | Taurus (Vrishabha) | 8 | Scorpio (Vrishchika) |
| 3 | Gemini (Mithuna) | 9 | Sagittarius (Dhanu) |
| 4 | Cancer (Karka) | 10 | Capricorn (Makara) |
| 5 | Leo (Simha) | 11 | Aquarius (Kumbha) |
| 6 | Virgo (Kanya) | 12 | Pisces (Meena) |
If Aries rises, a 1 sits in the first house, a 2 in the second, and the numbers climb in order around the diagram. But if Leo rises, the first house holds a 5, the second a 6, and the sequence wraps: after 12 comes 1 again. That jump is the whole trick of the layout. The houses stay put; the numbers tell you which sign each house holds for this birth. Planets are then written into the compartment holding their sign, so one glance shows you a planet's house, and the number beside it shows the sign.
How the South Indian chart works
The South Indian diagram is a plain square grid, four boxes by four, with the central four left empty and twelve boxes around the edge. Here everything is reversed in spirit: the signs are fixed in place and the houses move. Each box always holds the same sign, in every chart ever drawn.
The fixed arrangement starts with Pisces in the top-left corner, Aries in the box to its right, and the rest following clockwise around the edge:
| Pisces | Aries | Taurus | Gemini |
|---|---|---|---|
| Aquarius | Cancer | ||
| Capricorn | Leo | ||
| Sagittarius | Scorpio | Libra | Virgo |
No sign numbers are ever written; the boxes are the signs. What gets marked instead is the lagna, the rising sign: a diagonal line, or the word Lagna, drawn across whichever box held the ascendant at birth. That box becomes the first house, and the houses are counted clockwise from it. Planets are written straight into their sign boxes, and finding a planet's house means counting from the lagna box to where it sits.
It takes a moment longer than the North Indian glance, but the trade has its own reward: because the signs never move, you always know where to look for a planet in, say, Taurus, in any chart you are handed.
The direction reversal that trips beginners
The one thing beginners reliably get backwards: the North Indian chart's houses loop counter-clockwise, while the South Indian chart's signs run clockwise. Two diagrams, two opposite directions. Carry one habit into the other chart and every house count comes out wrong.
The fix is a ten-second ritual before reading anything. Name the style you are holding. If it is a diamond, the first house is top centre and you count counter-clockwise. If it is a grid, you find the lagna mark and count clockwise. Fix that single check in place and the two styles stop interfering with each other.
One birth, both diagrams
Walking one example through both layouts makes the equivalence concrete. Take a birth with Leo rising and the Moon at 18 degrees of Taurus. Counting signs from Leo, Taurus is the tenth, so this is a Moon in Taurus in the tenth house, a fine placement: the Moon is exalted in Taurus, and the tenth is the house of career and standing.
In the North Indian chart, the top-centre diamond holds a 5, because Leo rises. Counting counter-clockwise, the tenth house lands on the right-centre diamond, and it holds a 2, Taurus, with the Moon written inside it. In the South Indian chart, the Leo box on the right edge carries the lagna mark, and the Moon is written in the Taurus box on the top row; counting clockwise from Leo, Taurus is the tenth box. Same sign, same house, same reading, two shapes.
What else a good chart marks
Position is the start, and a well-drawn chart in either style records more. The degree of each planet within its sign is written beside it, which is what lets you judge how deep into a sign or nakshatra it sits. A retrograde planet carries a small flag, usually R or a similar marker. A planet very close to the Sun's degree is combust, weakened by the glare, and careful charts note it.
These small marks are the planet's condition, and they refine every reading made from the placement. None of them is a verdict on its own; a retrograde or combust planet is a planet with a modified voice, read alongside its dignity and everything else in the chart.
What about the East Indian chart?
A third regional form exists: the East Indian chart, used mainly in Bengal and neighbouring regions, with its own arrangement of fixed signs in a differently divided square. It is less common in software and books, and you can read for years without meeting one.
The lesson it teaches is the general one: do not be thrown by the shape of a chart. Whatever the outline, it carries the same nine planets in the same signs and houses, and the system those placements express is the one laid out in the Brihat Parashara Hora Shastra. The drawing is a regional dialect; the sky underneath is shared.
Which style should you learn?
Learn the style your charts usually arrive in. Families, regions, and software defaults decide this more than principle does, and fluency in one makes the other easy to pick up later. Most calculators, including the free birth chart tool on this site, can draw either form from the same birth details.
If you genuinely start from zero, the North Indian chart rewards house-first thinking, since every house has a permanent address, and the South Indian chart rewards sign-first thinking, since every sign does. The reading method built on top, planet, in sign, in house, then lords and aspects, is identical for both, and the main reading guide walks through it step by step.