How could someone find my name and housing society from my phone number?

There are a few possible routes, but the result alone doesn't tell you which one was used. A caller ID service might associate a name with your number even if you never entered it yourself. Other people's contact lists can contribute to those listings.

The housing society could have come from a separate source after finding your name. That might be a public profile, a directory, or information collected by a data broker. It could also be an inaccurate or outdated match that happened to be right in this case.

Check your account privacy settings, especially whether people can find you by phone number or sync their contacts to discover your profile. Then look at what a stranger can see on any profile linked to that number. A name in one place and a housing society mention in another may be enough to connect the dots.

Try searching your own number in a few formats, with and without the country code, and see what turns up. You can also check caller ID and reverse lookup services for your own listing. If you find an exposed listing, use that service's correction or removal process.

Be cautious with random lookup sites or messaging bots. You don't need to hand over more personal information just to investigate where your number appears.

Some people-search services advertise much more detailed records, but availability varies by country. Examples aimed at the US don't necessarily explain what happened in India. Your mobile provider having your registration details doesn't mean those details are publicly accessible either.

If you can, ask the person which source they used. Without that, leaks and broker records are possibilities, not a confirmed explanation.