2011 subdistrict Maps

[Justin Meyers]

putting together couple hundred datasets for india looks like this...  based on 2001 data, but i found a translation table to 2011; pretty sure it has a bunch of errors.  People who work in the agencies who publish any data really do not respond to e-mails for some mysterious reason...  you would think they would want help improving their data (maybe looking good in front of their boss ;)  )  but nope!?  India is a tough cookie to crack; glad i found everyone on this forum - you have all been beyond kind (especially when I have been somewhat rude).  

[Justin Meyers]

Does anyone have a 2001 subdistrict code that relates to a 2011 subdistrict code table?

Thanks!

Justin

[Sumit Mishra]

I do have one. However, i would forewarn you to use this information with caution; there are too many coding errors.

[Justin Meyers]

Is it from the ODS website? Could you send it?
Thanks,
Justin

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[Sharad Lele]

Are you looking for something like this? Sumit, is this what you have?

STC 2001	DTC 2001	Sub-DT 2001	PLCN 2001	NAME OF STATE, DISTRICTS, SUB-DISTTS. & VILLAGES 2001	2011 MDDS STC	2011 MDDS DTC	2011 MDDS Sub_DT	2011 MDDS PLCN	2011 MDDS NAME OF STATE, DISTRICT, SUB-DISTTS. & VILLAGES
29	00	0000	00000000	KARNATAKA	29	000	00000	000000	KARNATAKA
29	01	0000	00000000	Belgaum	29	555	00000	000000	Belgaum
29	01	0001	00000000	Chikodi	29	555	05433	000000	Chikodi
29	01	0001	00000100	Hadnal	29	555	05433	597114	Hadnal
29	01	0001	00000200	Sulagaon	29	555	05433	597115	Sulagaon
29	01	0001	00000300	Mattiwade	29	555	05433	597116	Mattiwade
29	01	0001	00000400	Bhatnaganur	29	555	05433	597117	Bhatnaganur
29	01	0001	00000500	Kurli	29	555	05433	597118	Kurli
29	01	0001	00000600	Appachiwadi	29	555	05433	597119	Appachiwadi

[Justin Meyers]

Yes, this is what I am looking for. What is the source?

Thanks,
Justin

["Sharad Lele [शरच्चंद्र लेले]"]

Census, but not on their website.

S.

-- 
Democratizing Forest Governance in India
(In press with Oxford University Press India)

[Justin Meyers]

Sharad,
Could you send it?  Do you have the links to the Web pages?

Thanks,
Justin

[Sumit Mishra]

Just read the entire conversation; will send you two separate files (one for rural and the other for urban).

On Sunday, 14 September 2014 12:14:17 UTC+5:30, Sumit Mishra wrote:

Sharad: Yes, i have this entire thing on one file; 

Justin, is this what you're looking for?

[Sumit Mishra]

Justin/Sharad,

Please follow this link to get the files (both in Stata format named - rdir/udir).

https://www.dropbox.com/sh/t7d3sy9sage8hoz/AABogZUrrWj-6uyFFy2T8mcna?dl=0

Use this dataset with caution. I had only worked on a subset of this- Maharashtra- and found some coding errors.

Let me know if you have any other question.

Thanks,

Sumit

[Justin Meyers]

Sumit,
Thanks!  If sharad shares his I will try to compare the two and maybe we could have a cleaned master list with no errors!?!

Cheers,
Justin

["Sharad Lele [शरच्चंद्र लेले]"]

This dataset from Sumit matches what we got from Census.

I can add to this the dataset linking 1991 codes to 2001 codes (down to village level), if there is interest. But it will take time.

And like Sumit found, I also find some errors here and there: some villages are missed out, or something is wrongly coded. But hard to pinpoint any patterns.

Sharad

[Justin Meyers]

Sharad,

thanks for your help.  I am at a point where I have come to accpet the data as is.  The 1991, 2001, and 2011 census codes are a great thing, but they will never line up 100%.  The data here: https://egovstandards.gov.in/code-dirctory-land-region-codification  is missing locations as if they never existed.  villages split into new villages, or join larger towns, and the codes are missing.  new villages appear, but it doesn't tell you where they came from or how to split existing towns.  The http://lgdirectory.gov.in/ website is missing data as well.  I have also found out the the census agency has the links for the data, they sell it.  But I believe the data they ship has missing data and corrupt files that do not function 100% for some districts/ states.  The last little problem with the census data is that it is missing hundreds, if not thousands of locations.  In looking at some village level data, there are clearly two or more different villages/ settlements in some of their village polygons.  although OSM and wikimapia are crowd projects, I believe some of the data there is correct.  Also, if you can find a good district/ tehsil map and it shows many more locations than what the census has, it makes you wonder what is going on...

thanks for all of your help with this everyone!

Justin

["Sharad Lele [शरच्चंद्र लेले]"]

Justin,

Just one comment:

"Locations" is a loose concept, and mapped in wikimapia it is even more
vague. As elsewhere, in India, words like location, settlement or even
village mean different things to different people. Census follows a
rigorous definition, using 'revenue villages' as the main unit, with
'forest villages' in a few cases. In wikimapia, one may see tags for
hamlets that are subsets of revenue villages (but have a different
name), but their data will be part of the census data of the revenue
village.

Sharad

On 01-Oct-14 6:32 PM, Justin Meyers wrote:
> The last little problem with the census data is that it is missing
> hundreds, if not thousands of locations. In looking at some village
> level data, there are clearly two or more different villages/
> settlements in some of their village polygons. although OSM and
> wikimapia are crowd projects, I believe some of the data there is
> correct.

[Khaliq Parkar]

As Sharad said, the typologies of the settlement change every census - in fact, the definition of what constitutes a census 'town' for example is determined at the end of current round. e.g. 2001 census determined which settlement would be listed as what and how it would be studied in 2011. 

 the census agency has the links for the data, they sell it

Yup, they do. I have all of Maharashtra and all of Bihar, and I can acquire the rest too. I can gather it all and upload it (approx 6-8 GB) if something comes out of it.  

[Khaliq Parkar]

As Sharad and Eric have been pointing out, do we have a source for the 2011 subdivision\block boundaries of Indian States?

(I plead newbie ignorance if I have missed out something in the vast data flow since the last time I logged in!)

["Sharad Lele [शरच्चंद्र लेले]"]

Khaliq:
When you say they 'sell it', i presume you are referring to the location
codes created in each census round and the tables that link one to the
other? in which case Sumit Mishra has already posted the all-India
dataset for this, right?

Sharad

On 11-Oct-14 10:19 PM, Khaliq Parkar wrote:
> Yup, they do. I have all of Maharashtra and all of Bihar, and I can
> acquire the rest too. I can gather it all and upload it (approx 6-8
> GB) if something comes out of it.

[Khaliq Parkar]

oh no. apart from the codes, their other data including their not so precise maps. Attaching a 2001 sample. 

Only Institutional purchase is viable considering the cost.

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["Sharad Lele [शरच्चंद्र लेले]"]

Khaliq:

I have seen similar materials for karnataka and tamil nadu (including also the village amenities directory, which is a mine of information).

You are right that if one is to buy this for the whole state, it is quite a bit of money.

But the bigger tragedy is (as I had said in a post not so long ago) that Census has, in its 2011 exercise, also created a GIS division that has converted all the boundaries in your pdf file to GIS format, and also gone and mapped down to the level of individual dwellings in many cities. They boast about this in a ppt that is available online which I had circulated, but they do not respond to any requests to make this GIS data base available (for free or for payment).

Sharad

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[Khaliq Parkar]

Ah!
let me tap my 'institutional' access to see what is possible. will update soon.

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>
> --
> Democratizing Forest Governance in India
> (In press with Oxford University Press India)
>

[Khaliq Parkar]

Bihar has one of the most detailed map sets I can see. They have uploaded village boundaries as well. 

http://gis.bih.nic.in/GISEditor.html

Con: works only on InternetExplorer.

["Sharad Lele [शरच्चंद्र लेले]"]

But this is not downloadable, is it?

[Khaliq Parkar]

No :| 
But if you don't mind the tedium, select only the boundaries that you want, deselect all basemaps and then you have the transparent outline layer to turn into vector file.
The panchayat\village distinction is not clear for some Large Villages though. Ignore the error msg on choosing Gram Panchayat.