Delhi was ranked as the world's most polluted major city on the eve of Diwali. Delhi's air pollution is expected to get worse in the coming days.
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Delhi was ranked as the world's most polluted major city on the eve of Diwali. Delhi's air pollution is expected to get worse in the coming days.

Delhi was ranked as the world's most polluted major city on the eve of Diwali. Delhi's air pollution is expected to get worse in the coming days.