Measuring agricultural land and maintaining up-to-date land records is the chief responsibility of the Patwari (known in various states as Lekhpal, Kanungo, Karamchari, or Village Officer):
- Each Patwari is responsible for a group of villages.
- Maintains the Khasra record: a detailed map and ledger recording exact plot boundaries, owners, crops grown, and irrigation facilities.
- Updates records when land is bought, sold, or inherited.
- Collects land revenue from farmers and provides crop reports to the government.
The Revenue Hierarchy
Districts are subdivided into sub-districts called Tehsils or Talukas:
$$\text{District Collector} \longrightarrow \text{Tehsildar (Revenue Officer)} \longrightarrow \text{Patwari}$$
The Tehsildar supervises the work of Patwaris, hears land boundary disputes, and issues caste and income certificates to villagers.