The first underground-railway in India was opened in l984 in
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Calcutta
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Madras
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Bombay
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Bangalore
A
Correct answer
Explanation
India's first underground railway (metro) was opened in 1984 in Calcutta (now Kolkata) - the Kolkata Metro. It was the first of its kind in India and began operations before Delhi, Mumbai (Bombay), Chennai (Madras), or Bangalore got their metro systems. This is a factual historical milestone.