@Nagarajan - it will be grate if you can share more about your application, and keen to collaborate too.
*| Dipal Thakker* On 15 April 2015 at 09:04, Nagarajan M <[email protected]> wrote: > @Diapl @Ma-roof Fully agree. Even i tried the same. > > Now looking at creating a GIS based application with whatever open data > and shapefiles available for rural development. > > With Best Regards, > > Nagarajan M, IAS > District Development Officer > District Panchayat,Sabarkantha > Himatnagar - 383 001 > Gujarat > M : 08000 42 8000 > > > > On Tue, Apr 14, 2015 at 11:48 AM, "Sharad Lele [शरच्चंद्र लेले]" < > [email protected]> wrote: > >> Dear Dipal: >> >> http://biogeo.ucdavis.edu/data/gadm2/shp/IND_adm.zip >> >> This is the link for GADM boundaries for india. >> >> Sharad >> >> >> On 14-Apr-15 11:10 AM, Dipal Thakker wrote: >> >> Shashank, Shashank, and DM comrades >> >> Great if someone can point me to the most complete / recent version of >> IND_adm3 data. I am working on a census tool and I have done some work for >> few states, but stuck without detailed boundary data-sets. >> >> I visited BISAG, a nodal agency in Gujarat which I am told has the most >> detailed GIS data sets for Gujarat and most parts of India, but was booted >> out on my request to access, lease, license, or rent data set.. its such a >> shame that on one hand PM/govt is talking about open data and on other >> there is a thick bureaucratic red tape. >> >> Cheers >> >> *| Dipal Thakker* >> >> On 14 April 2015 at 10:41, "Sharad Lele [शरच्चंद्र लेले]" < >> [email protected]> wrote: >> >>> Dear Shashank: >>> >>> I think the bottom line of the thread below was the the IND_adm3 layer >>> is a reasonably good layer for tehsil boundaries. >>> >>> Regarding digitizing village boundaries: seems like we are all condemned >>> to reinvent the wheel because GoI/Planning Commission/ISRO are not willing >>> to share what they have already done (and in many cases 10 times over). >>> >>> For which state are you trying to create a village boundary layer? >>> >>> Sharad >>> >>> >>> On 14-Apr-15 10:33 AM, Shashank wrote: >>> >>> Bumping this up, because I don't think this issue has been resolved yet. >>> I now have 4 different versions of Indian administrative boundaries, and my >>> current nightmare is getting protected area boundaries to line up with them >>> accurately. >>> >>> What's the best *open* version of Indian administrative boundaries, >>> down to the Tehsil/Block level, and is there a place from where it is >>> easily available? >>> >>> (I'm not even going to ask for village-level data, because among other >>> things, what we're doing now is digitising revenue village maps because the >>> MRD itself doesn't have digitised village level data...yet.) >>> >>> >>> On Tuesday, January 27, 2015 at 2:02:37 PM UTC+5:30, D Thakker wrote: >>>> >>>> Eric, in my research / experience i have found that Sub-district, >>>> Mandal, Taluka, Tehsil means same and are division of District when it >>>> comes to Census. >>>> But for Revenue dept boundaries are drawn and managed by district >>>> administrative bodies who report to state administration only. >>>> >>>> So for census - District and Sub-district are well defined boundaries, >>>> and I understand from 2011 Census India has bought a started numbering >>>> system which should make future data reconciliation easier >>>> >>>> But for land revenue depaetment - it really depends on the local >>>> administrative reach and function, and is managed and controlled by state >>>> admin bodies. >>>> >>>> For eg. Surat has some discrepancy when it comes to Revenue and Census >>>> boundaries. This was something I came across and even local admin bodies in >>>> Surat were not aware >>>> >>>> >>>> On Thursday, August 7, 2014 at 8:15:45 PM UTC+5:30, Eric Dodge wrote: >>>>> >>>>> This is very interesting Sharad. >>>>> >>>>> I've been looking for maps of what I've been calling administrative >>>>> blocks, that is, the units overseen by block development officers. MGNREGA >>>>> data is aggregated at this level and I've been hoping to use the data to >>>>> do >>>>> some mapping exercises. >>>>> >>>>> The census sub-districts are called differently across states >>>>> (tahsil, taluk, mandal, etc). You can see the list here: >>>>> >>>>> >>>>> http://censusindia.gov.in/Tables_Published/Admin_Units/Admin_links/subdistrict_nomeclature.html >>>>> >>>>> I know that in all the states where census sub-districts are called >>>>> taluk, mandal, or CD block (with the exception of TN), the census >>>>> sub-district is identical to the administrative block. >>>>> >>>>> I've already completed a mapping exercise for Bihar using the census >>>>> sub-district map and the data matched up pretty well. If the IND_adm3 data >>>>> is indeed the administrative blocks then I could do a similar exercise >>>>> with >>>>> Madhya Pradesh. I'll take a look to see if the data lines up correctly. >>>>> >>>>> Has anybody dug into this issue any deeper? I've heard that tehsil >>>>> comes from the revenue side whereas taluk, mandal, etc comes from the >>>>> administrative side but that doesn't explain why the census uses different >>>>> sub-district units across states. >>>>> >>>>> Best, >>>>> Eric >>>>> >>>>> >>>>> On Thu, Aug 7, 2014 at 7:39 AM, Sharad Lele <[email protected]> >>>>> wrote: >>>>> >>>>>> If I am right, then Justin may want to rename his layer as >>>>>> CDBlocks_2001... >>>>>> >>>>>> Sharad >>>>>> >>>>>> >>>>>> On Thursday, August 7, 2014 4:28:17 PM UTC+5:30, Sharad Lele wrote: >>>>>>> >>>>>>> I think I have the explanation for why I am seeing a good match and >>>>>>> you are not: >>>>>>> >>>>>>> The problem lies in defining what is the 'sub-district' unit (in >>>>>>> IND_adm3). Administratively speaking, it is tehsil, below which lies CD >>>>>>> block. Unfortunately, census gives information by CD block. So there are >>>>>>> more 'sub-district' units in Census than tehsils in the country. GDAM >>>>>>> seems >>>>>>> to have followed the tehsil concept. >>>>>>> >>>>>>> To check: Karnataka is one state in which tehsil and CD block are >>>>>>> one and the same. That is why the sub-district layer IND_adm3 matches >>>>>>> perfectly for Karnataka, but not for other states. There might be some >>>>>>> other states where this holds good, I don't know. >>>>>>> >>>>>>> Anyway, so if one really wants CD block level boundaries, we have to >>>>>>> look at Justin, I guess. >>>>>>> >>>>>>> But the GDAM boundaries are not 'wrong'. >>>>>>> >>>>>>> Sharad >>>>>>> >>>>>>> On 07-Aug-14 9:48 AM, Devdatta Tengshe wrote: >>>>>>> >>>>>>> In Continuation of my previous email, here is a CSV file which >>>>>>> shows just how bad the GDAM dataset is. >>>>>>> >>>>>>> Regards, >>>>>>> Devdatta >>>>>>> >>>>>>> >>>>>>> On Thu, Aug 7, 2014 at 9:06 AM, Devdatta Tengshe < >>>>>>> [email protected]> wrote: >>>>>>> >>>>>>>> Hi Sharad, >>>>>>>> >>>>>>>> I just download the GDAM data again, to confirm what you have said. >>>>>>>> >>>>>>>> I'm going to have to disagree with you about the quality of the >>>>>>>> IND_adm3 data. >>>>>>>> >>>>>>>> >>>>>>>> Acoording to the 2001 Census, there are 5454 Sub Districts in India >>>>>>>> <http://www.socialjustice.nic.in/pdf/tab11.pdf>. The GDAM dataset >>>>>>>> has just 2299 features. >>>>>>>> >>>>>>>> So clearly these taluk features do not correspond to the 2001 >>>>>>>> Census. I cross checked for some areas I have ground knowledge of, and >>>>>>>> I >>>>>>>> can say that this dataset is not from any specific era. Some tehsils >>>>>>>> in the >>>>>>>> file were created post 2001, while others created in the 90's were not >>>>>>>> present. >>>>>>>> >>>>>>>> In my opinion the GDAM data is pretty much unusable. >>>>>>>> >>>>>>>> >>>>>>>> Regards, >>>>>>>> Devdatta >>>>>>>> >>>>>>>> >>>>>>>> On Wed, Aug 6, 2014 at 11:36 PM, Sharad Lele <[email protected]> >>>>>>>> wrote: >>>>>>>> >>>>>>>>> I have downloaded and checked the GADM boundaries (my version is >>>>>>>>> 2011). The taluka boundary layer probably holds good today, becuase >>>>>>>>> few >>>>>>>>> talukas get split. Districts get split regularly (every so many >>>>>>>>> years) so >>>>>>>>> the district boundary layer in this GADM set is quite of date (may >>>>>>>>> apply to >>>>>>>>> 2001 or so). The spatial registration (positional accuracy is ~1km, >>>>>>>>> and the >>>>>>>>> spatial detail is of course not as good as the boundaries given in a >>>>>>>>> Survey >>>>>>>>> of India 50k topo, but then that is an unfair standard, so by a more >>>>>>>>> generalized standard, the quality is okay. >>>>>>>>> >>>>>>>>> Sharad >>>>>>>>> >>>>>>>>> >>>>>>>>> On Monday, August 4, 2014 7:20:38 PM UTC+5:30, Dilip Damle wrote: >>>>>>>>>> >>>>>>>>>> Mr Thakkar, >>>>>>>>>> >>>>>>>>>> Please also look at another post (more than one) on this group >>>>>>>>>> about Taluk Shapefiles by Justin Meyers >>>>>>>>>> >>>>>>>>>> So far as I know GADM is the source that has Taluk files. >>>>>>>>>> I am not sure about its completeness and accuracy as on today >>>>>>>>>> >>>>>>>>>> http://www.gadm.org/ >>>>>>>>>> >>>>>>>>>> On Monday, August 4, 2014 6:23:07 PM UTC+5:30, D Thakker wrote: >>>>>>>>>>> >>>>>>>>>>> thanks Dilip for your hardwork. >>>>>>>>>>> I have been on a lookout for all taluka / tehsil shape file, so >>>>>>>>>>> how do I be in a loop as I am very keen to see the repository mail >>>>>>>>>>> / list. >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> On Monday, August 4, 2014 9:50:26 AM UTC+5:30, Dilip Damle wrote: >>>>>>>>>>> >>>>>>>>>>>> Sharad, >>>>>>>>>>>> >>>>>>>>>>>> I am working on some things will revert in about a week or may >>>>>>>>>>>> be more. >>>>>>>>>>>> >>>>>>>>>>>> Thejesh, >>>>>>>>>>>> >>>>>>>>>>>> Go ahead, >>>>>>>>>>>> >>>>>>>>>>>> Actually there was one more source a Low Resolution (vertices) >>>>>>>>>>>> District map by VDS technologies. >>>>>>>>>>>> I have it as Polylines in Autocad. I seem to have lost the >>>>>>>>>>>> original file. >>>>>>>>>>>> If anyone has then please share it. (it does not seem to be on >>>>>>>>>>>> their site now) >>>>>>>>>>>> >>>>>>>>>>>> On Sunday, August 3, 2014 11:32:43 PM UTC+5:30, Thejesh GN >>>>>>>>>>>> wrote: >>>>>>>>>>>>> >>>>>>>>>>>>> Actually its not a bad idea to list it on the wiki. Let me >>>>>>>>>>>>> know i will create an account. >>>>>>>>>>>>> >>>>>>>>>>>>> -- >>>>>>>>>>>>> Thejesh GN ⏚ ತೇಜೇಶ್ ಜಿ.ಎನ್ >>>>>>>>>>>>> http://thejeshgn.com >>>>>>>>>>>>> GPG ID : 0xBFFC8DD3C06DD6B0 >>>>>>>>>>>>> On Aug 3, 2014 10:15 PM, "Sharad Lele" <[email protected]> >>>>>>>>>>>>> wrote: >>>>>>>>>>>>> >>>>>>>>>>>>>> Dear Dilip and others: >>>>>>>>>>>>>> >>>>>>>>>>>>>> I have been following this thread with interest, but to be >>>>>>>>>>>>>> honest am a bit lost now. Can someone post a summary of which >>>>>>>>>>>>>> maps >>>>>>>>>>>>>> mentioned so far have what features (which coverage, pertaining >>>>>>>>>>>>>> to which >>>>>>>>>>>>>> year, what attributes (such as census codes), etc.)? Would be >>>>>>>>>>>>>> most helpful. >>>>>>>>>>>>>> >>>>>>>>>>>>>> Sharad >>>>>>>>>>>>>> >>>>>>>>>>>>>> >>>>>>>>>>>>>> On Friday, August 1, 2014 9:03:58 PM UTC+5:30, Dilip Damle >>>>>>>>>>>>>> wrote: >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> Hello, >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> This is an old post. >>>>>>>>>>>>>>> However this is the appropriate place to add an additional >>>>>>>>>>>>>>> source. >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> I had downloaded the set from Grid Geneva many years ago. >>>>>>>>>>>>>>> The original complete source was named as GNV197 which is 24 >>>>>>>>>>>>>>> MB >>>>>>>>>>>>>>> Titled as "HUMAN POPULATION AND ADMINISTRATIVE BOUNDARIES >>>>>>>>>>>>>>> DATABASE FOR ASIA" >>>>>>>>>>>>>>> I am attaching the South Central Asia E00 file. >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> That set contains The disputed areas under the country name >>>>>>>>>>>>>>> IN1 and IN2 >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> This dataset can not be easily found at present on the GRID >>>>>>>>>>>>>>> Geneva site http://www.grid.unep.ch/index.php?lang=en in >>>>>>>>>>>>>>> the same name. >>>>>>>>>>>>>>> may be it is still there somewhere with some other name. >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> For copyright check the metadata file which is here >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> http://geonetwork.grid.unep.ch/geonetwork/srv/en/iso19139.xml?id=835 >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> rgds >>>>>>>>>>>>>>> Dilip Damle >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> On Wednesday, January 4, 2012 9:52:57 AM UTC+5:30, Karthik >>>>>>>>>>>>>>> Shashidhar wrote: >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> All the shapefiles for India that I have downloaded do not >>>>>>>>>>>>>>>> show PoK and Aksai Chin as part of India. Does anyone here >>>>>>>>>>>>>>>> have access to >>>>>>>>>>>>>>>> shapefiles that include these territories? Basically looking >>>>>>>>>>>>>>>> to publish >>>>>>>>>>>>>>>> (online) some maps, so want to make sure that it's accurate. >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> (I looked through the group archives, and all sources >>>>>>>>>>>>>>>> mentioned there do not show these regions as part of India) >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> Thanks >>>>>>>>>>>>>>>> Karthik >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>> -- >>>>>>>>>>>>>> Datameet is a community of Data Science enthusiasts in India. >>>>>>>>>>>>>> Know more about us by visiting http://datameet.org >>>>>>>>>>>>>> --- >>>>>>>>>>>>>> You received this message because you are subscribed to the >>>>>>>>>>>>>> Google Groups "datameet" group. >>>>>>>>>>>>>> To unsubscribe from this group and stop receiving emails from >>>>>>>>>>>>>> it, send an email to [email protected]. >>>>>>>>>>>>>> For more options, visit https://groups.google.com/d/optout. >>>>>>>>>>>>>> >>>>>>>>>>>>> -- >>>>>>>>> Datameet is a community of Data Science enthusiasts in India. Know >>>>>>>>> more about us by visiting http://datameet.org >>>>>>>>> --- >>>>>>>>> You received this message because you are subscribed to the Google >>>>>>>>> Groups "datameet" group. >>>>>>>>> To unsubscribe from this group and stop receiving emails from it, >>>>>>>>> send an email to [email protected]. >>>>>>>>> For more options, visit https://groups.google.com/d/optout. >>>>>>>>> >>>>>>>> >>>>>>>> >>>>>>> -- >>>>>>> Datameet is a community of Data Science enthusiasts in India. 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