The boy lived in Delhi where his father worked with a company. The family had come to participate in a marriage ceremony at their native village Torni under Kargahar police station of Rohtas district about five days back, officials said.
The incident happened when a police team of Karaghar police station led by the SHO had raided the house of liquor case accused Kundan Paswan at about 12.30am on Saturday
Locals spotted the boy trapped in the crevice on Nasriganj-Daudnagar bridge near Atmiganj village in Nasriganj block around 11 am on Wednesday and informed the authorities, officials said.