Smart and confident Balli has a deep connection with Bagdih, a coal mine in a fairly remote part of Bihar where his father works and where his Nana had chosen to work after the partition of India. Bagdih, which nurtures everyone who comes to earn livelihood and still holds no grudge when they never return, has a special relationship with Balli, whom she finds so much like herself. Growing up in a small colony, Balli builds his beautiful world with Samar and lovely Samaira, whom he loves and feels fiercely protective about. As he helplessly watches his world slowly disintegrate due to misunderstandings and unmet expectations, he only has his promise of joining the Indian Army made to Nana and affection of a much older Shambhu to keep him moving.

Balli leaves the place that gave him everything to pursue his goals only to return years later on a rescue mission. As he encounters several emotions on his return and goes through upheavals, he finds solace only in Bagdih's serene lap.

Set in the later part of twentieth century, 'Balli of Bagdih' is a depiction of how the characteristics of a place can build the character of a person born and brought up there.