Manimuthar River (tributary of Thamirabarani)
Manimuthar River (Tamil:மணிமுத்தாறு) originates on the eastern slopes of Western Ghats in Tirunelveli District of the state of Tamil Nadu in southern India. It is a major tributary of the Thamirabarani River. The river begins in the dense forest on a mountain peak above sea level in Ex-Singampatti Zamindari, Ambasamudram taluk and flows though small cataracts until it reaches the Tambaraparani River near Kallidaikurichi. The tributaries of the Manimuthar are the Keezha River and the Varattar River. As a tributary, the Manimuther River adds a considerable amount of water to the Tamiraparani River  as it seasonally is always in full. In 1957, Manimuthar anicut was built across the river before its juncture with the Tamiraparani. Manjolai Hills. Located between elevations ranging from , the Manjolai area is set deep within the Western Ghats within the Kalakad Mundanthurai Tiger Reserve in the Tirunelveli District. Located on top of the Manimuthar Dam and the Manimuthar Water Falls, the Manjolai area comprises tea plantations, small settlements around the tea plantations, Upper Kodaiyar Dam and a windy viewpoint called Kuthiravetti. The tea plantations and the whole of Manjolai Estates are tea operated by The Bombay Burmah Trading Corporation  Ltd on forest lands leased by Raja of Singampatti Samasthanam. There are three Tea Estates within the Manjolai area – Manjolai Estate, Manimutharu Estate and Oothu Estate. The Estates are located on elevations ranging between . The estates, road and settlements in the Manjolai area are managed by The Bombay Burmah Trading Corporation Ltd. Majolai can be reached through public bus transport without any special permission; bus services are available daily.