Solution:The Madras Aluminium Company Limited (MALCO) is situated at Mettur (Dist. Salem), Tamil Nadu, The other pairs are correctly matched. At present, INDAL is a part of HINDALCO.Bharat Aluminium Company (BALCO) is an Indian company that produces aluminium. It has a history as a public sector undertaking (PSU) and has also been involved in various development initiatives within the Indian economy.
Indian Aluminium Company Limited (INDAL) is a major player in the Indian aluminium industry, part of the Aditya Birla Group and historically a subsidiary of Hindalco Industries. It's known for its vertically integrated operations, producing a range of aluminium products and speciality alumina chemicals.
The Madras Aluminium Company Limited (MALCO), incorporated in 1961, is an integrated aluminium producer in South India, with its operations encompassing mining, refining, smelting, and power generation. It is a subsidiary of Vedanta Resources. MALCO has its own bauxite mines in Tamil Nadu, specifically at Yercaud and Kolli Hills, and operates a captive power plant.
Hindustan Aluminium Corporation Limited (Hindalco), part of the Aditya Birla Group, is India's largest integrated primary aluminium and semi-fabricated products manufacturer. Established in 1958, Hindalco's headquarters are in Mumbai, and it is a global leader in aluminium and copper.