Compare the birth details and the numerical chart first. Compare the interpretation afterwards. Two reports can disagree because they used different inputs, different calculation conventions, or different explanations of the same chart.
Keep both original reports. A screenshot of one prediction paragraph usually leaves out the information needed to explain the difference.
Check these items in order
| Check | What to compare |
|---|---|
| Birth date and time | Day/month order, AM/PM and whether midnight belongs to the following date. |
| Birthplace | The actual town and country of birth, not your present address. |
| Time zone | The local clock and the offset applicable on the birth date, including daylight saving where relevant. |
| Chart heading | Rasi with Rasi, Navamsa with Navamsa, and a Bhava chart with the same house method. |
| Position notation | Degrees within a sign versus a longitude measured around the full circle. |
| Calculation conventions | Zodiac, ayanamsa, lunar-node convention and house method. |
For an overseas birth, do not manually convert the time to Indian time and then also select the original birthplace. That can apply a time-zone adjustment twice. Follow the form’s instruction for the birth location and local time.
A number that looks different may be the same
40° of full-circle longitude and 10° in the second 30° sign describe the same position when both reports use the same zero point and zodiac. One notation counts from the beginning of the circle; the other starts again at the beginning of each sign.
Likewise, a planet’s Rasi placement and its position in a separate Bhava chart answer different questions. Check the title before comparing the box.
What is ayanamsa doing here?
Ayanamsa is the offset used to relate tropical and sidereal zodiac positions. Different sidereal conventions can use different offsets. Near a boundary, that difference may change a sign or subdivision label. The Swiss Ephemeris documentation describes multiple ayanamsa and house conventions; this is background about methods, not a statement that OlaMatch uses that software.
OlaMatch uses its own engine. A matching method name alone is not a complete accuracy check: the date, time, location and numerical positions still matter.
The charts agree, but the predictions do not
Traditional interpretation involves choices about which factors receive emphasis. Ask each practitioner to point to the placement, period or rule behind the explanation. Different wording is not, by itself, evidence of a calculation error. Predictions should not be treated as verified future events.
A useful question is: “Both charts place the Moon here. Which additional factor leads to your different explanation?”
Read the Rasi and Navamsa guide or keep the chart glossary beside the reports. Sample PDFs show OlaMatch’s format before you prepare your Jathakam.
