If you were born in the US to Indian parents, your moon sign is not inherited from your parents’ birthplace or ancestry, it is computed from your own birth date, time and place.
Your birthplace, not your ancestry, sets the chart
The Moon’s position in the sky at your exact moment and place of birth determines your chandra rashi (moon sign). A birth in Houston is computed for Houston’s coordinates and time zone, the same precise way a birth in Hyderabad would be computed for Hyderabad, using the same astronomical rules.
Why the calculation still needs care
The one thing that matters is getting the birth details exactly right: correct local time zone (including whether daylight saving time was in effect), correct city coordinates, and an accurate birth time from the hospital record. These are data-entry details, not cultural ones.
Vedic vs Western sun signs
If you grew up seeing a different “sign” in Western horoscopes, that is likely your sun sign in the tropical zodiac, a separate system from the sidereal Vedic moon sign. Both can be computed for the same birth without conflict, they simply measure different things.
Get your moon sign
Use the kundli tool with your exact birth date, time and city to see your accurate moon sign, sun sign and lagna together.
This information is descriptive.