FMB Sketch Tamil Nadu 2026: Download Online, TSLR and Patta Check

Posted by Housepartner Editorial Team on 09/11/2026

Housepartner Editorial TeamUpdated 9 Nov 2026 · 7 min read

Checked against official government sources. General information, not legal or financial advice.

An FMB sketch (Field Measurement Book sketch) is the official survey map of a land parcel in Tamil Nadu, and you can view and download it free on the state’s e-Services portal (eservices.tn.gov.in) under “View Patta & FMB / Chitta / TSLR Extract”. It shows the shape, side lengths and neighbouring survey numbers of one survey field. For land in towns and cities, the matching record is the TSLR (Town Survey Land Register). This guide explains what the FMB shows, how to download it and how to use it with your patta and chitta.

FMB sketch Tamil Nadu at a glance

Full form: Field Measurement Book sketch
Kept by: Tamil Nadu Department of Survey and Land Records; master copy at the taluk office
View online: eservices.tn.gov.in, “View Patta & FMB / Chitta / TSLR Extract”
Online copy: free, for reference
Urban records: TSLR, searched by town, ward, block and town survey number
Village maps: tnlandsurvey.tn.gov.in
Survey, sub-division and patta requests: tamilnilam.tn.gov.in/citizen and e-Sevai centres

In this guide

What is an FMB sketch?
What the FMB sketch shows
FMB, patta, chitta, A-register and TSLR
How to download the FMB sketch online
Certified copy, survey and sub-division
How buyers should use the FMB
Common problems and fixes
Frequently asked questions

What is an FMB sketch?

When land in Tamil Nadu was surveyed, each survey field was measured and drawn to scale in a field measurement book. The FMB sketch is a copy of that drawing for one survey number. It is kept under the Tamil Nadu Survey and Boundaries Act, 1923, and is updated when a field is sub-divided or re-surveyed.

An FMB shows where the land is and how big it is. It does not prove who owns it. Ownership comes from the registered sale deed, with the patta showing the name in revenue records.

What the FMB sketch shows

Survey number and sub-division numbers
Outer boundary of the field (often called the F-line) and the length of each side
Internal sub-division lines
Reference lines and offsets used to fix the corners
Survey numbers of the neighbouring fields on each side
Scale, north direction and total extent

Measurements are usually in metres, and extents in hectares and ares. Use our land area converter or cent to square feet tool to compare them with the sale deed.

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FMB, patta, chitta, A-register and TSLR

Record	What it tells you	Where to get it
Patta	Owner name in revenue records, survey number and extent	eservices.tn.gov.in
Chitta	Land type and classification (now shown with the patta)	eservices.tn.gov.in
A-register	Village register of survey numbers, land type and extent	eservices.tn.gov.in
FMB sketch	Shape, side lengths and neighbours of a rural survey field	eservices.tn.gov.in or taluk office
TSLR	Town survey record for urban land, by ward, block and town survey number	eservices.tn.gov.in (Urban option)

How to download the FMB sketch online

Open eservices.tn.gov.in.
Click View Patta & FMB / Chitta / TSLR Extract.
Choose Rural for village land or Urban for town survey (TSLR) land.
Select the district, taluk and village. For urban land, select the town, ward and block.
Enter the survey number and sub-division number, and fill in the captcha or OTP if asked.
Open the FMB sketch and save the PDF.
Download the patta for the same survey number and compare the extent.

If a survey number does not show up, the sketch may not be digitised yet, or the number may have changed in a re-survey. Ask at the taluk office, where the original book is kept.

Certified copy, survey and sub-division

The online FMB is for reference. Banks, planning bodies and courts may ask for a certified copy signed at the taluk office.

Apply at the taluk office or an e-Sevai centre with the survey number, sub-division number, patta and sale deed.
Pay the fee charged for the copy. It varies by request, so ask at the counter.
Collect the copy signed and sealed by the taluk office.

To have boundaries marked on the ground, or to split a survey number after a sale or partition, apply online on the tamilnilam.tn.gov.in/citizen portal or at an e-Sevai centre. A surveyor visits the land, and the FMB is updated with the new sub-division. Patta transfers that involve sub-division also go through this route. Track the status on eservices.tn.gov.in with your application ID.

How buyers should use the FMB

Match the survey and sub-division numbers on the FMB, patta and sale deed.
Compare the extent on the FMB with the patta and the deed. Small differences are common; large ones need a survey before you pay.
Check that the neighbouring survey numbers match the boundaries written in the deed.
Walk the land with the FMB and check the side lengths against the fence or wall.
If the plot is part of a larger survey number, ask whether it has been sub-divided and shown on the FMB.
Check the encumbrance certificate on TNREGINET for loans and past sales.
For a layout plot, check the DTCP or CMDA approval, and the project’s TNRERA registration where it applies.

Common problems and fixes

Problem	What to do
Survey number not found online	Check rural vs urban, try the old number, or ask at the taluk office
Extent on FMB differs from patta	Apply for a survey through tamilnilam or e-Sevai before buying
Plot not shown as a separate sub-division	Apply for sub-division with the deed and patta; register only after it is done
Fence goes beyond the boundary line	Ask for a boundary survey and settle the line with the neighbour

Related guides: read our patta chitta Tamil Nadu guide, check deeds and EC on TNREGINET, look up the guideline value in Chennai, work out the stamp duty in Tamil Nadu, and check projects on TNRERA. See also our encumbrance certificate guide.

Frequently asked questions

What is the full form of FMB?

FMB stands for Field Measurement Book. The FMB sketch is the scaled survey drawing of one survey field, with its boundaries, side lengths and neighbouring survey numbers.

How can I download the FMB sketch in Tamil Nadu?

Go to eservices.tn.gov.in, click View Patta & FMB / Chitta / TSLR Extract, choose rural or urban, select the district, taluk and village, and enter the survey and sub-division number.

Is the online FMB sketch free?

Yes. Viewing and downloading the FMB on the e-Services portal is free. Certified copies and survey requests at the taluk office or e-Sevai centre carry fees.

What is TSLR in Tamil Nadu?

TSLR stands for Town Survey Land Register. It is the land record for surveyed town and city areas, searched by town, ward, block and town survey number.

Does the FMB sketch prove ownership?

No. The FMB shows the location, shape and size of land. Ownership is shown by the registered sale deed, and the patta shows the name in revenue records.

What if the FMB extent does not match the patta?

Small differences are common. For a large gap, apply for a land survey through the tamilnilam citizen portal or an e-Sevai centre, and settle it before you buy.

How do I update the FMB after sub-division?

Apply for sub-division online or at an e-Sevai centre with your deed and patta. A surveyor measures the land, and the FMB and patta are updated with the new numbers.

Portals, fees and procedures are set by the Government of Tamil Nadu and can change. Check the e-Services portal or your taluk office before you buy, sell or apply. This guide is general information, not legal or survey advice. Sources: Tamil Nadu e-Services portal (eservices.tn.gov.in); Tamil Nadu citizen portal for land services (tamilnilam.tn.gov.in/citizen); Department of Survey and Land Records (tnlandsurvey.tn.gov.in); Director of Land Survey press release on online land records, as reported by DT Next (July 2024); Tamil Nadu Survey and Boundaries Act, 1923.

About the author

Housepartner Editorial Team Housepartner.in

The Housepartner Editorial Team writes and reviews Housepartner's buyer guides on RERA, land records, stamp duty and property documents, using official government sources. The team has worked in Indian real estate since 2013.

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