India's only quinine making unit set up in 1874, has been shut since 2001

Covid-19 has triggered a sense of urgency to revive this sick unit, as Hydroxychloroquine, an anti-malarial drug, surfaced as potential medicine to alleviate the symptoms of the disease

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Perched in the hills of Darjeeling, the factory was set up in 1874, but has remained shut since 2001