Summary:
Kolkata has been declared one of the most polluted cities in the world and is emerging as the lung cancer capital of India. “Tracks must be isolated from the carriageway and the network must be spread to fledgling townships like New Town,” Gupta said. In the last few days, Kolkata has become the most polluted city in the country. It is the only one in India and one of the oldest in the world. It is high time pollution is tackled by curbing smoke-emitting vehicles..