I want to get the locations of all the police stations in India. There is definitely some data which is present in the OpenStreetMap which I am able to crawl. However, there are about 15,579 police stations in the country and only about 4000 are present in the osm bulk data.
How can I get the data of all the other police stations?
Any kind of procedure even including manual effort will suffice.
I'll put the OSM queries here as an answer, although the person asking the question has stated that OSM doesn't have nearly all entries.
There are two main keywords to query:
https://overpass-turbo.eu/s/11f0 (without country-filter or bounding box)
Loaded – nodes: 13505, ways: 1516, relations: 16
Displayed – pois: 3530, lines: 1, polygons: 1472
[out:json][timeout:100];
// gather results
(
// query part for: “police=*”
node["police"]({{bbox}});
way["police"]({{bbox}});
relation["police"]({{bbox}});
// query part for: “amenity=police”
node["amenity"="police"]({{bbox}});
way["amenity"="police"]({{bbox}});
relation["amenity"="police"]({{bbox}});
);
// print results
out body;
>;
out skel qt;
featureCode=S.PP and countryCode=IN. Unfortunately there's no online search of this granularity so you need to grep through a dump file.