One of India's worst industrial disasters of all time occurred in Bhopal on December 1984, in which of the following factories?

Union Carbide

The correct answer is Option (3) - Union Carbide

One of India's worst industrial disasters occurred in Bhopal in December 1984 at the Union Carbide pesticide plant. This disaster, often referred to as the Bhopal Gas Tragedy, resulted in the release of toxic gases, primarily methyl isocyanate (MIC), affecting thousands of people and causing widespread devastation and loss of life.