LONDON (REUTERS).- In a filthy pit, straining his body as he hacks ash from the ground, the image of a man captured in a black and white photograph represents the working conditions of many laborers in coal-rich northeast India. The picture is one of several being exhibited in London this month by photographer Srinivas Kuruganti, illustrating life in Jharkland state, where underground fires sparked by coal mining have raged for nearly a century and displaced communities. Kuruganti’s fascination with the impacts of coal mining in northeast India started with a short bus ride he took in 1999, from the city of Varanasi to a small town called Chandasi, the biggest coal depot in Asia. “Hundreds of men and women spend all day shoveling and carrying coal in and out of trucks,” he said. “The air is so thick with fine particles of coal dust that