Jyotiṣa basics
What is a janam kundli and how do you read yours
A janam kundli is a map of the sky for the minute you were born, drawn from where the planets actually stood. Read it from the lagna outward and it stops being a mystery.
The short answer
A janam kundli, also called a janampatri or Vedic birth chart, records the sidereal positions of the nine grahas, the lagna rising in the east, and the twelve houses at your exact time and place of birth. Everything a Jyotishi reads, from career to marriage timing, begins with this one document.
The sky, fixed at one minute
Every chart answers a single question. Where was everything when you arrived? The Sun, the Moon, Mars, Mercury, Jupiter, Venus, Saturn, and the two lunar nodes Rahu and Ketu each occupied a precise degree of the zodiac at your first breath. The kundli writes those positions down and never changes again. Transits move, dashas turn, but the birth chart is the still photograph the rest of your life is measured against.
Vedic astrology uses the sidereal zodiac, anchored to the fixed stars rather than the seasons. The difference between the two systems, called the ayanāṁśa, is close to 24 degrees at present. This is why your Vedic Sun sign is often one sign earlier than the Western one you grew up with. Neither is a mistake. They are two rulers laid against the same sky.
Timing matters more than most people expect. The lagna advances about one degree every four minutes, so a birth time that is off by half an hour can hand you a different rising sign and reorder every house in the chart. This is the reason a careful Jyotishi asks for the time on the hospital record, not the time the family remembers.
The four parts every reading uses
- The lagna, or ascendant. The sign rising on the eastern horizon at your birth. It fixes the first house and sets the frame for the entire chart. In Sanskrit it is the लग्न, the point of attachment.
- The nine grahas. The seven visible bodies plus Rahu and Ketu, the north and south nodes of the Moon. Each carries its own significations. Saturn speaks of labour and time, Venus of relationship and art, Mars of drive and conflict.
- The twelve bhavas, or houses. Wealth sits in the second, siblings in the third, mother and home in the fourth, and so on around to the twelfth. A graha's house tells you where in life its voice is loudest.
- The 27 nakshatras. Finer divisions of the zodiac, each 13 degrees 20 minutes wide. Your Moon's nakshatra is your birth star, and it seeds the Vimshottari dasha timeline that gives Vedic astrology its sense of timing.
North Indian and South Indian styles
The same chart is drawn two ways. In the North Indian diamond, houses stay fixed and the signs rotate to fit your lagna. In the South Indian square, the signs stay fixed and the lagna is marked with a stroke. Neither layout changes a single calculation. If you grew up with one style, any honest software will show you both.
How a reading actually proceeds
A traditional reading is less mystical than its reputation. The order is fairly settled.
- Weigh the lagna and its lord. Which sign rises, where its ruling graha sits, and how strong that ruler is. This sketches temperament and constitution.
- Move to the Moon. Its sign, house, and nakshatra describe the mind, and the Moon chart serves as a second lagna for emotional life.
- Check each house through its lord and occupants. Career questions go to the tenth, marriage to the seventh, learning to the fifth.
- Open the Vimshottari dasha. The chart shows what is promised. The dasha timeline shows when the promise ripens.
Two charts with the same promise can deliver it decades apart, which is why a kundli reading without the dasha is only half a reading.
What to check before you trust any kundli
Software disagrees more often than people realise, and nearly all disagreement traces to three settings. Ask which ephemeris computed the positions, which ayanāṁśa was applied, and how the houses were divided. Graha Darpan uses the Swiss Ephemeris, the Lahiri ayanāṁśa recommended by India's Calendar Reform Committee, and whole sign houses, and it prints every computed degree on the chart so nothing asks for your blind trust.
Common questions
Can I make a kundli without my exact birth time?
You can, but treat it as provisional. Planet positions and the Moon's nakshatra usually hold across a few hours, so a Moon chart reading still works. The lagna, the houses, and dasha start dates are the casualties of a wrong time.
Is a janam kundli the same as a birth chart?
Yes. Janam kundli, janampatri, natal chart, and horoscope all name the same document. The Vedic version simply measures the sky sidereally.
Why is my Vedic sign different from my Western sign?
Because of the ayanāṁśa, currently about 24 degrees. Roughly two people in three find their Sun one sign back in the Vedic chart. Your chart is not wrong. The ruler changed.
What does casting a kundli cost here?
Nothing. The chart, dashas, yogas, and panchang are free, and you only spend credits when you ask the Jyotishi questions.