BY A STAFF REPORTER: The early history of West Bengal is undated to the 3rd century BC. After the death of Emperor Aurangzeb, proto-industrial Mughal Bengal became a semi-independent state under the Nawabs of Bengal. Bengali is the main language of the state, spoken by the majority of the population. The capital of West Bengal is Kolkata. West Bengal is the second largest tea producing state in India. The most popular festival of West Bengal is Durga Puja.