தமிழ் நாட்டின் நில அளவை வரலாறு

What the guidance covers

The Tamil Nadu Government revenue and land administration guidance explains how land surveying developed and how revenue surveys are carried out and maintained. It describes early Paimash records, the Great Trigonometrical Survey and the introduction of cadastral revenue surveys across the former Madras Presidency.

A revenue survey identifies government and privately owned land boundaries, measures them, calculates the area and records the name of the person enjoying the land after enquiry. A first survey of land for which no earlier survey work or records exist is called an initial cadastral survey.

Who may find it relevant

The guidance is relevant to landowners, buyers, survey staff, Village Administrative Officers and people dealing with boundary or ownership disputes. Revenue survey records can support civil court cases involving boundaries and land rights. They also help describe property in registered documents involving sale, partition, settlement, gift, exchange, release and wills.

Key survey guidance

• A metric chain contains 100 links. Each link represents 0.2 metre or 20 centimetres. The guidance gives 175 links as an example equal to 35 metres.
• The person pulling the front of the chain is called the Leader. The person directing alignment from the other end is called the Follower.
• Arrows are placed in the ground at the end of each chain length so completed lengths and remaining links can be counted.
• A cross staff is used to establish a perpendicular line, determine a straight line between two places and refix measurements shown in an existing field map.
• A standard pole checks the chain length. An offset pole can help a Village Administrative Officer measure cultivation, encroachment and shorter perpendicular distances.
• Topographical surveys map natural features, settlements, rivers, streams, roads and places of worship. These maps support social, economic and scientific development planning.

Records and property implications

The manual covers village survey work, survey marks, subdivision numbering, natham surveys, village alteration registers, stone registers, survey errors, online patta transfer and area calculation. Revenue surveys also help identify encroachments on land classified as government poramboke and support action concerning such land.