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Constituency Overview
Mettur Assembly Constituency is located in **Salem district** of Tamil Nadu and forms part of the **Dharmapuri Lok Sabha constituency**. Situated in the north-western part of Salem district, the constituency is centred around the industrial town of **Mettur**, best known for the iconic **Mettur Dam (Stanley Reservoir)** built across the **Cauvery River**. Commissioned in 1934, the dam is one of India's largest masonry dams and serves as the lifeline for irrigation across the Cauvery Delta in Tamil Nadu. Mettur is also one of the state's most important industrial centres, with a long history of chemical, aluminium and power generation industries.
The constituency enjoys good connectivity through state highways linking it with Salem, Dharmapuri, Erode and Karnataka. The local economy is driven by large-scale industries, hydroelectric power generation, agriculture and fisheries. The **Mettur Thermal Power Station**, **Mettur Dam Hydroelectric Project**, **Chemplast Sanmar**, **MALCO (formerly Madras Aluminium Company)** and other industrial units have made Mettur a major manufacturing hub. Agriculture thrives in irrigated areas, with paddy, sugarcane, turmeric, maize, tapioca and vegetables being the principal crops. Inland fisheries in the Stanley Reservoir, dairy farming and retail trade also provide substantial employment.
Location
Approximate location of Mettur Assembly Constituency, Salem district.
2026 Election Result
Venkatachalam. G
Votes: 86,498
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Votes: 67,393
Victory margin: 19,105 votes
Political History
Mettur has traditionally been one of the politically influential constituencies in western Tamil Nadu. The constituency has witnessed electoral contests primarily between the Dravida Munnetra Kazhagam (DMK), All India Anna Dravida Munnetra Kazhagam (AIADMK), Pattali Makkal Katchi (PMK), Bharatiya Janata Party (BJP), Indian National Congress (INC) and other regional political parties.
Industrial development, Cauvery water management, agriculture, employment generation, power production and infrastructure have consistently shaped electoral outcomes. The constituency's strategic importance in water and energy sectors gives it a unique political profile.
Demographics
Population
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Urban / Rural
Major Sectors
Key Industries
Major Crops
Key Development Issues
Industrial modernisation and water management remain the foremost priorities in Mettur. Industrial units seek infrastructure upgrades, environmental compliance, uninterrupted power supply and improved logistics.
Farmers seek assured Cauvery water releases, modern irrigation systems and better procurement facilities. Residents seek improved healthcare, educational institutions, drinking water supply, pollution control, urban infrastructure and employment opportunities. Environmental sustainability and industrial pollution management continue to be major concerns.
Constituency Insights
Mettur combines industrial strength with agricultural prosperity. The electorate includes industrial workers, farmers, fishermen, engineers, government employees, traders, teachers, students and small business owners.
Large industries, power generation and agriculture dominate the local economy, while fisheries, logistics and retail trade provide additional employment. The constituency's economy is closely linked to the Mettur Dam and Cauvery water system, making water management central to development. Voters generally prioritise industrial growth, irrigation, employment opportunities, healthcare, education and infrastructure.
Frequently Asked Questions
Q: Where is Mettur Assembly Constituency located?
A: Mettur Assembly Constituency is located in Salem district of Tamil Nadu and forms part of the Dharmapuri Lok Sabha constituency.
Q: Who is the current MLA of Mettur?
A: S. Sadhasivam of the Pattali Makkal Katchi (PMK) is the current MLA of Mettur, having won the 2021 Tamil Nadu Assembly election as part of the AIADMK-led alliance.
Q: Why is Mettur Assembly Constituency important?
A: Mettur is home to the Mettur Dam, one of India's largest masonry dams and the primary source of irrigation for the Cauvery Delta. It is also one of Tamil Nadu's major industrial and power generation centres.
Q: What are the major economic activities in Mettur?
A: Heavy industries, power generation, agriculture, inland fisheries, chemical manufacturing, retail trade and logistics are the major economic activities in the constituency.
Q: What are the major crops grown in Mettur?
A: Paddy, sugarcane, turmeric, tapioca, maize, vegetables and coconut are among the major crops cultivated in the constituency.
Q: Is Mettur an urban or rural constituency?
A: Mettur is a semi-urban and industrial constituency comprising Mettur town, surrounding industrial areas and irrigated agricultural villages.
Q: Which Lok Sabha constituency does Mettur belong to?
A: Mettur Assembly Constituency is part of the Dharmapuri Lok Sabha constituency.
Q: What are the key development issues in Mettur?
A: Cauvery water management, industrial development, pollution control, healthcare, education, irrigation, drinking water supply and employment generation are among the major concerns.
Q: Why is Mettur famous?
A: Mettur is famous for the Mettur Dam (Stanley Reservoir), inaugurated in 1934 across the Cauvery River. The dam supplies irrigation water to millions of acres in the Cauvery Delta and supports hydroelectric power generation. Mettur is also known for its thermal power station, chemical industries and aluminium manufacturing.
Q: What factors influence elections in Mettur?
A: Cauvery water availability, industrial growth, employment opportunities, irrigation, environmental protection, healthcare, education, welfare schemes and local leadership are among the most important factors influencing elections in the constituency.