The coal industry got independence twice. Firstly, when India became independent in 1947 and the reins of the country's development came into the hands of Indians. Secondly, when the coal industry was nationalized. Even after independence, this industry did not show growth as expected. With the intention of greed for economic benefits, few people started running coal mines. The mineworkers were somehow making their living by working in an absolutely inhuman environment. The first coking coal mines were nationalized in May 1972, and all non-coking coal mines were nationalised in May 1973.

Though the book is a story of the industry going from darkness to light, it was felt necessary to simultaneously discuss the future outlines and challenges in today's situation. On one hand, the country needs energy, and on the other hand, it is necessary to save the environment. Would both of these be possible? What do the leaders of this industry say, and what do the present and future generations say?

This book, Andhera Ujala, is the story of the journey of the coal industry and all the aspects related to it to date.