Which is the oldest aluminium refinery plant in India?

Correct option is B

The correct answer is (b) The Muri Alumina Plant.
 The Muri Alumina Plant is the oldest aluminium refinery plant in India.
 Established in 1948 by the Aluminium Corporation of India, it is located in the town of Muri in Jharkhand.
 The plant plays a significant role in the production of alumina, which is a critical input for aluminium smelting.
Information Booster:
The Damanjodi Plant:
 Located in Odisha and operated by National Aluminium Company Limited (NALCO).
 It is one of the newer plants, established in the 1980s.
The Mettur Plant:
 Located in Tamil Nadu and primarily known for its role in the chemical industry rather than aluminium refining.
The Belgaum Plant:
 Located in Karnataka and operated by Hindalco Industries Limited.
 It is one of the major alumina refineries in India, established later than the Muri Alumina Plant.