Letchmi Estate is situated in the south-west part of the beautiful Kanan Devan Hills. This part of the district receives high rainfall and occasional frost during the winter, and the average annual rainfall for the estate is around 170 inches. With the amalgamation of Letchmi and Sevenmallay Estates to form Letchmi Estate on 1st April 2005, the total tea area of the estate became 1075 Ha. The total area of the estate at 2068 Ha. consists of tea, energy plantation, jungle and other area in Viriparai Division, which was opened in 1991.