Assam Land Measurement Lecha Katha Bigha Unit Guide
Assam uses unique land units: Lecha (144 sq ft), Katha (4 Lecha = 576 sq ft), and Bigha (5 Katha). Here is the complete guide for Assam land buyers.
Assam has one of India’s most distinctive land measurement systems. The hierarchy is: Lecha (144 sq ft) → Katha (4 Lecha = 576 sq ft) → Bigha (5 Katha = 2,880 sq ft). Note that Assam’s Bigha (2,880 sq ft) is dramatically smaller than UP’s Bigha (27,225 sq ft) — they share a name but little else.
This system is used in all official Assam land records (including the NRC land verification process) and is essential knowledge for anyone buying land in Assam. Use our lecha to square feet in assam calculator — the only dedicated Lecha conversion tool available online.
For comparison with other Eastern states: West Bengal uses a different Katha (720 sq ft) and Bihar uses yet another (1,361 sq ft). The word “Katha” covers a range from 576 to 1,361 sq ft depending on state. Always specify state when using the term.