Number of registered trailers Kolkata India 2016-2018
In 2018, the number of registered trailers in the Indian city of Kolkata was 449. In 2016, the capital city of West Bengal was the second most polluted city in India, second only to Delhi. Despite having fewer registered vehicles as compared to the other Indian metropolitan cities, the 'city of joy' remained in the list of the most polluted cities across India for the past few years.