How to read a birth chart: a step-by-step guide
Reading a birth chart means taking the Lagna, the Moon and the Sun as reference points, then looking at each graha's sign, house, nakshatra and dignity in turn.
What it is
Start with the Lagna sign and its lord, which set the first house. Then note the house and sign of each graha, the retrograde marks, and any combinations (yogas) that the classical rules describe. Finally, read the dashas for timing.
How it is worked out or read
The order matters: the chart is a set of relations, and no single graha decides a reading. The house a graha occupies is always counted from the Lagna in whole-sign houses on this site.
Where it appears on this site
The birth chart tool gives the table of grahas and the houses. The twelve houses overview is the next step.
Start with the inputs
Before reading any graha, check the inputs. The date, the local time, the time zone offset, the latitude and longitude of the birth place and the ayanamsa all shape the chart, and a mistake in any of them can change the Lagna and the house of planets near a boundary. A reader who has confirmed the inputs can trust the rest of the reading more, and one who has not should say so when describing the chart.
The birth time deserves the most attention, because the Lagna changes about every two hours. If the time is uncertain, the reader should test the chart at the earliest and latest possible times and note which conclusions survive that range.
Read the Lagna and its lord
Next, identify the Lagna sign and its lord. The Lagna sets the first house, and its lord shows how the themes of the first house are carried through the chart. The lord's sign and house, its dignity and its aspects are the first things to examine, because they connect the self to the rest of the chart. This step gives the reading a clear centre.
Then look at the Moon. The Moon's sign and nakshatra are used in many traditional rules, including the Sade Sati check, the Manglik count from the Moon and the dasha at birth. A reader who keeps the Moon in view alongside the Lagna has two reference points, one for the body and one for the mind.
Read the grahas by house
Each graha is then read by its sign and by the house it occupies. The sign shows the quality the graha expresses, and the house shows the area of life where that expression is most visible. The reader notes any retrograde marks, the degree of each graha and whether it shares a sign with another. These details give texture to the reading and prevent the chart from being treated as a set of isolated labels.
It is useful to read the houses in groups: the kendras, the trikonas, the upachaya and the dusthana houses each carry a traditional character, and a reader can see where the planets cluster. A cluster in a few houses often shows where the chart's energy concentrates.
Check the reading before trusting it
Finally, check the reading for consistency. Do the Lagna lord, the Moon and the most prominent graha tell the same story? Are there contradictions that need a second look? A reading that rests on one feature alone is less reliable than one that several features support. The reader should state the limits, the settings used and the sources of each rule. The chart reading article and the accuracy checklist give the steps in more detail.