Document Guide · Tamil Nadu
How to Check sub-division of land in Tamil Nadu — Complete Guide 2026
The Sub-Division Sketch Tamil Nadu is the survey drawing prepared by the Tamil Nadu Survey Department after a survey number is split into smaller parcels through partition, sale, gift, or layout. It is required before any sale deed for a sub-divided plot can be registered. This guide covers application, fields, defects, and red flags.
Quick Reference
Also calledFMB Sub-Division, Sub-Division of Survey Number, Bhu Naksha (informal national term)
Issued byTamil Nadu Survey and Settlement Department through the Tahsildar's Taluk Office
Valid forLifetime, until further sub-division or re-survey occurs
Cost₹100 to ₹500 for the certified sketch; field-survey charges separate; ₹60 patta transfer fee per CSC
Time taken3 to 7 working days for routine view; several weeks for fresh field survey and FMB amendment
Online portaleservices.tn.gov.in (view only). Application is offline at the Tahsildar's office.
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What is sub-division of land in Tamil Nadu?
Definition
The Sub-Division Sketch in Tamil Nadu is the survey drawing the Tamil Nadu Survey Department prepares when an existing survey number is divided into two or more parcels, recording the new sub-division boundaries, dimensions, and adjacent sub-division numbers within the same Field Measurement Book entry. It draws its legal force from the Tamil Nadu Survey and Boundaries Act, 1923 read with the Tamil Nadu Patta Pass Book Act, 1983.
A survey number is the basic unit of land identification in Tamil Nadu. When the parent parcel splits through partition, sale of part, gift, or layout, every new piece needs its own sub-division number, drawn into the FMB sub-division entry. Without it the parcel exists on paper, not in the Survey Department's books. Sub-Registrars refuse to register undrawn sub-divisions. Banks refuse loans on parcels whose sub-division boundaries cannot be confirmed. Buyers who skip this step end up with documents pointing to a parent survey number that other heirs or co-owners may also claim against.
The Survey Department issues a fresh survey number and sub-division number combination for each split, for example S.No. 16/1A and 16/1B from a parent S.No. 16/1. The updated drawing is digitised into eservices.tn.gov.in under View Patta and FMB / Chitta / TSLR Extract once the field survey closes. The portal is for viewing only; the application itself is offline at the Tahsildar's office. Bhu Naksha, sometimes used as a national umbrella name for cadastral mapping, is not a Tamil Nadu portal; the state's official channel is eservices.tn.gov.in.
State-specific note: Sub-divided plots cannot be registered in Tamil Nadu until the sub-division sketch is drawn and the FMB updated. The seller's "sub-division is in process" claim is not a green light to pay an advance.
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Page Title Sub-Division Sketch Tamil Nadu: How to Apply Guide 2026
Sub-division applications in Tamil Nadu are filed offline at the Tahsildar's Taluk Office. The eservices.tn.gov.in portal lets you view sub-division entries that have already been drawn. Have the parent survey number, partition or sale documents, prior Patta, and identity proof ready before starting.
Online method (recommended)
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Open the e-Services portal Visit [eservices
tn.gov.in](http://eservices.tn.gov.in) and click View Patta and FMB / Chitta / TSLR Extract on the homepage. The page works without login for read-only views.
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Enter parent survey details Select Rural, Natham, or Urban
Pick district, taluk, and village. Enter the survey number with the sub-division number you want to verify. The portal returns the FMB sub-division drawing if the sketch has been drawn.
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Cross-check sub-division entries Look for the new sub-division numbers (e
g. 16/1A, 16/1B) on the sketch. The combined extent of all sub-divisions should equal the parent survey number's extent. Mismatch is a sub-division defect.
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Save the sketch Download the PDF for reference
The online copy is not certified. For registration, bank loans, or DTCP plan approval, a Tahsildar-certified copy from the Taluk Office is what carries legal weight. * ###
* If the portal returns "no record" against the sub-division number, the sketch has not been drawn or digitised yet. Move to the offline application immediately.
Offline method (Sub-Registrar Office)
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File the sub-division application Visit the Tahsildar's office covering the village
Submit a written application for sub-division along with the Partition Deed, Sale Deed, or Settlement Deed, prior Patta Chitta, EC, identity proof, and the proposed split details.
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VAO verification The Village Administrative Officer verifies the application against the village register, confirms the parent survey number and ownership, and forwards the file to the Surveyor for field measurement
Pending tax dues block this step.
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Surveyor field measurement The Surveyor visits the parcel with the applicants and adjacent landowners
Boundaries of each new sub-division are physically measured and pegs placed. Neighbours sign the boundary acknowledgement. The Surveyor drafts the new FMB sub-division.
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FMB amendment and updated Patta The Tahsildar approves the new FMB sub-division entry and issues fresh sub-division numbers
The Patta Chitta is updated for each new owner. The certified Sub-Division Sketch is signed and issued to the applicants. *
* Apply with all co-owners or legal heirs present, with consent letters. Surveyor visits where one party is missing tend to be deferred and add weeks to the timeline.
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What Does Sub-Division Sketch Contain in Tamil Nadu?
Every Sub-Division Sketch is an extract from the parent Field Measurement Book showing how the survey number has been split. Mismatch on any field against the partition deed or sale deed is a registration-blocking defect.
| Field | What it means | What to check |
|---|---|---|
| Parent Survey Number | Original undivided survey number | Match against the parent Patta and partition deed |
| New Sub-Division Numbers | Fresh identifiers for each split (e.g. 16/1A, 16/1B) | Confirm each new owner gets a unique number |
| Sub-Division Boundary Lines | Internal lines splitting the parent parcel | Match against the partition deed schedule |
| Extent of Each Sub-Division | Area assigned to each new owner | Sum of sub-divisions must equal parent extent |
| Neighbouring Sub-Division Numbers | Adjacent parcels along each face | Cross-check with neighbours' Pattas and FMBs |
| Owner Names | New owners against each sub-division | Match against fresh Patta Chitta after split |
| Surveyor Signature and Date | Field measurement record | Confirms the survey was physically conducted |
| FMB Reference Number | Linked to the parent Field Measurement Book entry | Used for bank verification and re-download |
Good sign: A clean Sub-Division Sketch shows new sub-division numbers matching the partition deed, extents summing to the parent survey extent, neighbour acknowledgement, and a Tahsildar's signature with a working FMB reference number.
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Common Issues With Sub-Division Sketch in Tamil Nadu
Every Sub-Division Sketch is an extract from the parent Field Measurement Book showing how the survey number has been split. Mismatch on any field against the partition deed or sale deed is a registration-blocking defect.
Sub-division not drawn after partition
The Buyer Warning is direct: a sub-divided plot cannot be registered in Tamil Nadu until the sketch is drawn. After partition the parent FMB still shows the undivided survey number. Sale deeds for "1.5 acres of S.No. 16/1" without a fresh sub-division number get rejected at the Sub-Registrar's desk. *
Fix: * Insist the seller complete the FMB sub-division at the Tahsildar's office before signing. Apply jointly if the seller stalls. Pay only against a fresh sub-division number on the Patta.
Sub-division extents do not sum to parent
Inaccurate field measurement can produce sub-division extents that, added together, are less or more than the parent survey extent. Buyers paying on the deed extent end up with the surveyor's smaller extent, or are exposed to a future correction reducing their parcel. *
Fix: * Add the extent of every new sub-division. The total must equal the parent survey number's extent. Demand re-survey if there is any deviation before registration.
Layout plot sold without DTCP-approved sub-division
Layout developers selling plots from agricultural survey numbers without DTCP-approved sub-division and conversion expose buyers to demolition risk and refusal of building plan approval. The Tamil Nadu Town and Country Planning Act, 1971 governs this strictly. *
Fix: * Demand the DTCP-approved layout, the Conversion Order, and the sub-division sketch with corresponding new survey numbers. Walk away from any layout plot missing all three.
Neighbour signatures missing on the sketch
The Surveyor's drawing of sub-division lines requires acknowledgement from adjoining survey number owners. A sub-division done without the neighbour's signature can be challenged later, particularly where the line cuts close to a shared boundary. *
Fix: * Verify every adjoining sub-division has signed the Surveyor's record. If a neighbour refused, obtain a Tahsildar's order resolving the boundary dispute before purchase.
Online portal shows no record for sub-division
The eservices.tn.gov.in portal sometimes returns "no record" for newly drawn sub-divisions. Common causes are pending digitisation of the new FMB entry, village dropdown gaps, or sub-division numbers not yet uploaded by the Survey Department. *
Fix: * Cross-check with the certified offline sketch from the Tahsildar. File a written digitisation request along with a copy of the certified sub-division sketch.
Sub-division on assigned or government land
Sub-division applications on Natham, Poramboke, or assigned land are rejected. Sellers occasionally claim a sub-division has been done where the original parcel is government land. The Madras HC in The Tahsildar v. T. Elumalai (2025 MHC 1238) confirmed that occupation does not confer title. *
Fix: * Run Verify Poramboke Land on eservices.tn.gov.in for the parent and proposed sub-division survey numbers. Walk away from any parcel returning a government tag.
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Why Sub-Division Sketch Matters for Land Buyers in Tamil Nadu
The Sub-Division Sketch is the single document that decides whether a part-parcel sale can actually be registered in Tamil Nadu.
Required for any part-parcel registration A sale deed for part of a survey number cannot be registered without the corresponding sub-division number on the FMB
The Sub-Registrar verifies the sub-division before accepting the deed. This is the gatekeeper for partition sales, gift of partial parcels, and layout plots.
Anchors the new Patta Chitta after split The Buyer Warning is explicit: this document is required for sub-divided plots
After the sub-division sketch closes, the Patta Chitta is updated with the new sub-division numbers, listing each new owner against their share. Without it, buyers cannot get their name into the revenue records.
Mandatory for bank home loans on layout plots Banks pull the sub-division sketch alongside the Patta and FMB before sanctioning loans on layout plots or partitioned land
The sketch confirms the parcel exists as a separately surveyed unit. Missing or unrectified sketches delay disbursement by months.
Tamil Nadu-specific: Drawn under the Survey and Boundaries Act, 1923 Sub-division operations in Tamil Nadu run under the Tamil Nadu Survey and Boundaries Act, 1923 with the Surveyor's field measurement as the legal anchor
Unlike states with Bhu Naksha portals, Tamil Nadu uses an offline application route with the eservices.tn.gov.in portal serving viewing only.
Red flag: If a seller in Tamil Nadu offers part of a survey number without a fresh sub-division number, claims partition is "complete on paper", or shows a layout plot without DTCP approval and a sub-division sketch, walk away.
Browse verified land in Tamil Nadu
Browse Verified Tamil Nadu LandsFrequently Asked Questions
What is Sub-Division Sketch Tamil Nadu?
Sub-Division Sketch Tamil Nadu is the survey drawing prepared by the Tamil Nadu Survey Department when a survey number is split through partition, sale, gift, or layout. It records the new sub-division boundaries, fresh sub-division numbers, and updated extents within the parent FMB.
How do I apply for sub-division of survey number in Tamil Nadu?
File an application at the Tahsildar's Taluk Office with the partition deed, prior Patta, EC, and identity proof. The VAO verifies, the Surveyor measures the parcels in the field, and the Tahsildar approves the new FMB sub-division entry and issues fresh sub-division numbers.
Is Bhu Naksha Tamil Nadu available?
No. Bhu Naksha is the national cadastral mapping name used by states like Madhya Pradesh, Chhattisgarh, and Odisha. Tamil Nadu uses its own portal at eservices.tn.gov.in for FMB sub-division viewing. There is no separate Bhu Naksha Tamil Nadu portal.
Can I register sale deed without sub-division sketch in Tamil Nadu?
No. The Tamil Nadu Sub-Registrar refuses to register a sale deed for part of a survey number without a fresh sub-division number on the FMB and Patta. The undrawn sub-division registration block is the most common cause of stalled deals.
How long does sub-division process take in Tamil Nadu?
Routine viewing of an existing sub-division on the eservices portal is instant. Fresh sub-division applications at the Tahsildar's office, including VAO verification, Surveyor field measurement, and FMB amendment, typically take several weeks. Disputed cases run several months.
What is the difference between FMB and sub-division sketch?
The FMB is the master Field Measurement Book entry for a survey number. The sub-division sketch is the updated FMB drawing after the survey number is split, showing the new sub-division numbers, boundaries, and extents within the same FMB record.
Who issues sub-division sketch in Tamil Nadu?
The Tamil Nadu Survey and Settlement Department issues the sub-division sketch through the Tahsildar's Taluk Office, after VAO verification and the Surveyor's field measurement. The Tahsildar signs and stamps the certified sketch under the Tamil Nadu Survey and Boundaries Act, 1923.
Is sub-division required after land partition in Tamil Nadu?
Yes. After a partition deed is registered, each legal heir's share must be drawn into the FMB as a separate sub-division before any of them can sell or mortgage their share. Without sub-division the partitioned parcel exists on paper but not in the Survey records.