Families often assume the community has more or less dispersed. It has thinned, but there are still places where a real number of Anglo-Indian households are within reach of each other.
In India
Kolkata remains the largest concentration — Bow Barracks, Ripon Street, the surrounding parishes, and the schools that still carry the community's history. The annual events here draw people back from abroad.
Chennai has a substantial population around Perambur and the old railway areas, with active associations and a busy calendar.
Bangalore has a younger and more dispersed community — Richards Town, Cooke Town, Frazer Town — many of them working in the city rather than born in it.
Kochi, Secunderabad, Jabalpur, Kharagpur, Asansol all retain smaller communities, usually clustered around a school or a former railway establishment.
Abroad
Perth and Melbourne between them hold one of the largest Anglo-Indian populations anywhere, with associations that run substantial annual events.
Toronto and southern Ontario have a long-established and well-organised community.
London and the south-east, particularly around the older settlement areas, though more dispersed than the Australian communities.
Auckland, smaller but tightly connected.
What this is useful for
Two things.
Where to look. A family searching only in its own city may have a dozen households to consider. The same family open to Kolkata, Chennai, Bangalore and the diaspora is looking at a different order of magnitude.
When to travel. The annual reunions, association dinners and Christmas events are when the community is physically in one place. Families have met at these for decades and still do.
The honest limitation
Attending an event will not by itself introduce you to someone of the right age who is also looking. The gatherings skew older, and the people at them are mostly there for the community rather than to be matched.
They are good for knowing the community still exists and for reconnecting families. They are not a reliable way to meet a partner, which is precisely the gap that has opened up over the last thirty years.
The community has not vanished. It has simply stopped putting the right people in the same room by accident, the way it used to.