Betrayal   Sapan Banerjee lived in a small neighborhood near Raniganj in West Bengal , India . His wife died a couple of years ago .He had only a daughter Dola .Dola was married and well settled with her husband in the USA . Sapan was popularly known as Sapan Da in the neighborhood .He was working with a private contractor of the Raniganj coalfields . Even while  he was just  in his 50s , he left the job after some dispute with the contractor about his wages .  Sapan Da had frequent trouble with his stomach , sometimes pain