Delhi, Mumbai & Kolkata among world’s 10 most polluted cities after Diwali
New Delhi, 13/10: Two Indian cities joined New Delhi to be among the world’s worst 10 for pollution on Monday morning, with smoke heavy in the air a day after revellers let loose with firecrackers for Diwali – the annual Hindu festival of light. The capital New Delhi took, as it often does, the top…
