| Thirumanimutharu river | |
|---|---|
 | |
| Native name | திருமணிமுத்தாறு (Tamil) |
| Location | |
| Country | Salem District,Namakkal district India |
| Physical characteristics | |
| Source | |
| • location | Manjavadi , Shevaroy Mountain atYercaud |
| • coordinates | 11°46′45″N78°12′12″E / 11.77917°N 78.20333°E /11.77917; 78.20333 |
| • elevation | 1,515 meters (4,970 ft) |
| Mouth | |
• location | Nanjai Edayar atNamakkal district |
• coordinates | 11°05′58″N78°02′04″E / 11.09944°N 78.03444°E /11.09944; 78.03444 |
• elevation | 121 meters (397 ft) |
| Length | 120 km (75 mi) |
TheThirumanimutharu River originates from three reserved forests in the Eastern Ghats (Shevaroy Mountain) inSalem district,Tamil Nadu. It runs for 120 kilometers throughNamakkal district before joining theCauvery River nearParamathi Velur at Nanjai Edayar village in Namakkal district, Tamil Nadu.[1]
The river originates from three reserved forests in the Eastern Ghats:
Several streams flow southward from Velampatti Reserved Forest (11°45′30.6″N78°19′51.8″E / 11.758500°N 78.331056°E /11.758500; 78.331056), converging into a single river known as the East Thirumanimutharu. This river passes through several villages, including Kuttathupatti, Palapatti, Jalakandapuram, Sarkar Nattamangalam, and Karumapuram, before entering Karipatti village. FromKaripatti village, the Thirumanimutharu flows westward, passing through Ayothiyapattinam on its way toSalem town.
Three water streams originate from the Manjavadi Ghat Reserved Forest (11°46′57.7″N78°19′03.6″E / 11.782694°N 78.317667°E /11.782694; 78.317667), merging into a single river called the West Thirumanimutharu. This river flows towards Salem town, passing through many villages such as Achankuttapatti, Kuppanur, and Paruthikadu. Before entering Salem town, the East and West Thirumanimutharu Rivers converge at Mannarpalayam village (11°41′00.6″N78°11′40.5″E / 11.683500°N 78.194583°E /11.683500; 78.194583), forming a single river that continues through the Salem town area.
A water stream originates from the Kapputhu Reserved Forest (south side ofYercaud Hills) (11°44′07.2″N78°12′46.6″E / 11.735333°N 78.212944°E /11.735333; 78.212944) and flows towards Salem town. Before entering Salem, it merges with the Thirumanimutharu River at Mannarpalayam (11°41′46.3″N78°12′04.8″E / 11.696194°N 78.201333°E /11.696194; 78.201333). Here, part of the water from the Thirumanimutharu River is diverted toMookaneri Lake inKannankurichi using a check dam.
Another water stream originates from the west side of the Yercaud Hills in Kurumbapatty (11°44′26.8″N78°10′17.9″E / 11.740778°N 78.171639°E /11.740778; 78.171639) and merges with the Thirumanimutharu River to the north of Nethimedu (11°38′58.7″N78°08′04.8″E / 11.649639°N 78.134667°E /11.649639; 78.134667) in Salem town.
TheKannimar Stream originates from the northern side of the Jarugumalai Reserved Forest (11°37′34.4″N78°12′21.0″E / 11.626222°N 78.205833°E /11.626222; 78.205833), flowing through the Skandasramam Murugan Temple and reaching Kumaragiri Lake. It then continues through the middle of Salem town, eventually merging with the Thirumanimutharu River within Salem town.
Two water streams originate from the southern side of theKanjamalai Reserved Forest (11°36′36.9″N78°03′45.6″E / 11.610250°N 78.062667°E /11.610250; 78.062667) and flow eastward, merging with the Thirumanimutharu River at Chinnasiragapadi.
ThePonniyar River originates to the north side of theKanjamalai Reserved Forest (11°37′12.6″N78°01′46.6″E / 11.620167°N 78.029611°E /11.620167; 78.029611) and flows throughElampillai, Magudanchavadi, andMallasamudram, merging with the Thirumanimutharu River at Konnayar village.
Several water streams (called theElur River) originate from the Namagiripettai village side of the Kolli Hills (11°27′04.8″N78°19′04.4″E / 11.451333°N 78.317889°E /11.451333; 78.317889). These streams flow through Elur village in Namakkal district and merge with the Thirumanimutharu River to the north of Kudacheri village.
TheCauvery-Ponniyar-Thirumanimutharu River Linking Project is a proposed initiative in Tamil Nadu aimed at improving water resource management in the region. This project is part of broader efforts to connect various river systems to address water shortages, particularly in drought-prone areas.[2]
Historically, the Thirumanimutharu River has been an important water source for agriculture and local communities. However, it has become heavily polluted due to industrial effluents, untreated sewage, and agricultural runoff. The river's degradation has sparked environmental concerns, leading to government intervention and public demand for rejuvenation.
According to reports, BOD levels in various stretches of the river have reached critical levels, indicating severe pollution and contamination.[3][4]
The high levels of industrial pollutants and sewage have severely affected aquatic ecosystems. Oxygen depletion, caused by organic waste and chemicals, has reduced biodiversity in the river.[3][4]
In response to the severe pollution, several efforts have been made to clean up and rejuvenate the Thirumanimutharu River:
Despite these efforts, the implementation of rejuvenation projects, such as the construction of STPs, has faced delays due to issues like tender processes and bureaucratic hurdles, slowing down the river's recovery.[3][4]
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