[Talk-in] Districts of India according to Census 2001/2011

[Ashim Kapoor]

Dear all,

Here is how I  can get the GeoJSON for the latest Districts of India:-

https://wiki.openstreetmap.org/wiki/Districts_in_India

For instance for Uttar Pradesh:-

https://wiki.openstreetmap.org/wiki/Districts_in_Uttar_Pradesh

There is a link at the bottom of the above page which shows me how to extract:-
[out:xml][timeout:500];
{{geocodeArea:Uttar Pradesh}}->.searchArea;
(   relation["boundary"="administrative"]["admin_level"="5"](area.searchArea););
out meta;>;out meta qt;

My query is : How can I get the GeoJSON for say Districts in Uttar
Pradesh according to a previous census year, say 2001 ?

Many thanks,
Ashim