In India majority of the coal-fields are found in the eastern part. The maximum concentration of coalfield in the north-eastern part of the peninsular plateau of India comprising parts of Jharkhand, Chhattisgarh, Orissa and eastern Madhya Pradesh and western part of West Bengal adjoining Jharkhand. The southern part of Andhra Pradesh and eastern part of Maharastra also have large deposits of coal. The two-thirds of India's coal is produced by four states of Jharkhand, Chhattisgarh, Orissa and Madhya Pradesh. About 40% of India's total coal production comes from just two states of Jharkhand and Chhattisgarh.