Mapping PIN codes
I haven’t found an open or reliable database providing the geo-location of Indian PIN codes. That’s a bother if you’re creating geographic mash-ups. The closest were commercial sources: a PIN code directory from the Postal Training Centre for Rs. 2,000, which probably just contains a list of PIN codes, and a PIN code map from MapMyIndia for Rs. 1,00,000, whose quality I’m not sure of. (I spoke to one of their sales representatives who mentioned that the data was gathered via companies such as Coca Cola, using their local distribution knowledge, perhaps GPSs.) Crowd-sourcing this might help. Here’s a site where you can map the location of any PIN code you know: ...