FMB Sketch Online: Full Form, Meaning, Benefits, Types & How to Obtain

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The FMB full-form is the Field Measurement Book. It is a crucial repository of land map data managed by the Government at the Village Administrative Office (VAO) or Revenue Department. It carefully documents land measurements at scales of 1:1000 or 1:2000, providing precise dimensions for surveyors and engineers. This tool features blank pages, lines, and grid patterns, facilitating accurate onsite sketches.

Surveyors rely on the FMB sketchbook to record measurements and observations in the field, aiding in the creation of detailed site maps. FMB Sketch plays a pivotal role in land surveying, ensuring the accuracy and reliability of spatial data.

Features and Benefits of FMB Sketch Online

Enhanced Accessibility and Convenience: FMB Sketch Online provides a centralised repository for field measurement sketches, enabling users to access detailed land information conveniently from their homes or offices.
Time and Cost Savings: The online platform significantly reduces the associated costs of traditional land record retrieval processes. By eliminating expenses related to transportation, document retrieval, and photocopying, FMB Sketch Online simplifies the process of acquiring property information.
Empowerment for Property Owners and Developers: Property owners benefit from the accurate and up-to-date property information FMB Sketch Online provides. For land developers, the platform is a valuable tool for making informed decisions regarding site planning and land utilisation strategies.
Promotion of Transparency and Accountability: FMB Sketch Online contributes to a culture of transparency by making field measurement sketches publicly accessible. This openness empowers citizens to scrutinise property information, reducing opportunities for corruption and malpractices in land administration.
Strengthens Public Trust: The enhanced transparency provided by FMB Sketch Online fosters confidence in the fairness and integrity of land records management. Government agencies benefit from the platform's centralised features, simplifying operations and enhancing overall accountability in land administration.
Streamlining Land-Related Processes: FMB Sketch Online plays a pivotal role in various land-related processes, including property tax assessment, land dispute resolution, and land development planning. The platform ensures fair and equitable property tax assessment by providing accurate land dimensions.

How to Get FMB Sketch?

Acquiring an FMB Sketch involves a straightforward procedure:

Head to the Taluk office in the relevant area to obtain a copy of the FMB sketch for the desired land.
Approach the Tahsildar with a formal request for the FMB sketch. Fill out a request form specifying the survey number relevant to the land.
Complete the form, attest it with your signature, and attach all necessary documents. Submit the entire package to the relevant authority.
The Tahsildar reviews the requests, either approving or rejecting them. In case of rejection, an appeal can be made to the District Collector.
Pay the required fee and obtain a receipt for future reference.
Upon approval, receive the FMB sketch copy of the land, complete with a unique reference number. This systematic process ensures a smooth and regulated acquisition of FMB sketches.

Components of FMB

Let’s look at the key FMB components.

G-line: The G-line is a crucial element in FMB sketch creation. It serves as an illustrative line that fixes boundary lines and various points by converting them into triangles of varying sizes. Errors in the G-line can impact essential computations in the sketch.
F-line: Designating actual field boundaries in the sketch's outer lines, the F-line's points are fixed concerning their distance from the G-line. It plays a pivotal role in outlining accurate field boundaries.
Subdivision lines: Subdivision lines define tiny areas within a survey number. The extent of a polygon's subdivision and the discovered extent for that specific subdivision are closely connected, contributing to the precision of the FMB sketch.
Ladder: Utilised to establish field line points, the ladder provides a distance offset from the G-line, emphasising left or right angle deviation. Converting ladder specifics into digital data aids in creating the FMB sketch's outline.
Extension lines: In the FMB, extension lines show the precise direction in which the subject field meets neighbouring fields, enhancing clarity and precision in the map.
Neighbouring field survey numbers: Each FMB indicates surrounding field numbers, simplifying processes like converting FMBs into D-sketches and facilitating field survey data integration from nearby areas.

FMB Sketch Types: Field Sketch Types

The FMB map encompasses three vital types, each serving distinct purposes:

Profile Sketches: Profile sketches illustrate the ground profile along a specific line, offering insights into the topographical features and elevations present in the surveyed area.
Plan Drawings: Plan drawings provide a comprehensive layout of an area, detailing the placement of buildings, roads, and various features. They offer a visual representation of the spatial arrangement and organisation within the surveyed land.
Elevation Sketches: Elevation sketches depict changes in ground elevation along a designated line, making them particularly useful for projects like proposed pipeline routes. These sketches offer a detailed understanding of the terrain's vertical variations.

How is FMB Sketch Maintained?

FMB online maintenance involves meticulous record-keeping at scales of 1:1000 or 1:2000 for each survey number. Subdivisions within these survey numbers are allocated to respective property owners, ensuring a detailed and organised representation of land parcels. The FMB book serves as a comprehensive repository, documenting essential details such as land location, type, extent of measurements, and dates of measurements. This systematic approach allows for easy information retrieval for future reference and analysis. The FMB Sketch, therefore, stands as a reliable and structured record-keeping system, contributing to efficient land management and documentation.

Field Sketching Tips

Field measurement book (FMB) sketching is a vital skill for engineers and surveyors, ensuring accurate records in construction areas. Crafting a detailed FMB sketch becomes more manageable with these essential tips:

Diverse Points of Reference: To enhance accuracy, measure from various points of reference within the area. This practice helps capture a comprehensive understanding of the terrain.
Use Feet and Inches: Opt for a measuring tool with feet and inches to minimise conversion errors between imperial and metric units. This ensures precision in recording measurements.
Label Every Measurement: Assign labels to each measurement. This simple step facilitates easy comprehension during subsequent reviews, ensuring clarity in understanding the sketch.

Correction for Wrong FMB Sketch

Addressing an erroneous FMB map involves a structured process. To rectify inaccuracies, individuals must submit an application to the Tahsildar, the responsible authority. Revenue authorities undertake a survey and measurements of the land, amending the FMB accordingly.

In cases where the Tahsildar's response is lacking, a legal course of action can be pursued. Initiating a petition in court directs the Tahsildar to correct the FMB, ensuring accurate and reliable land records. This systematic approach ensures the correction of discrepancies, maintaining the integrity of FMB sketches in land documentation.

Also Read: FSI: FSI Meaning, Calculation, and Importance

Frequently Asked Questions (FAQs)

1.) How do I Find My FMB Sketch Online?

To view your FMB sketch online, visit the Land Records website at
https://eservices.tn.gov.in/ eservicesnew/land/chitta.html?lan=en. Select the district, taluk, and village, and enter the area type to access the FMB sketch copy.

2.) What is FMB in the Land Survey?

In land surveying, FMB, or Field Measurement Book, is a compilation of map data stored in volumes at the Tahsildar office. It records precise measurements at scales of 1:1000 or 1:2000, providing essential information for surveyors and engineers.

3.) What is the Full form of an FMB Map?

The full form of the FMB map is the "Field Measurement Book" map. It is a comprehensive record of land measurements, locations, and dimensions, crucial for property transactions and surveying.

4.) How to use FMB?

Surveyors and engineers use FMB to record precise measurements and create accurate site maps. It helps verify land dimensions and property borders and is essential in real estate acquisition.

5.) What is the Meaning of FMB in Patta Chitta?

In the context of Patta Chitta, FMB refers to the Field Measurement Book, a map-based record of land dimensions. On the other hand, Patta Chitta is a legal document establishing ownership, containing details like survey number and land extent.