The word Nullatanni means "Good Water" or "Abundant Water" (Nulla = Good & Thanni = Water). Nullatanni which is a western end estate records very high rainfall. i.e. around 198 inches per year. Nulattanni, apart from its tea/fuel area, has the Instant Tea Division, which is a 100% EOU. Company's Welfare Projects consisting of DARE, Blacksmithy Trade School, Aranya, Athulya, High Range Knitting Association and Tata Tea Wives' Welfare Association are all located in Nullatanni. This estate also has the Fire Station which caters to the entire district.