సిద్ధిపేట జిల్లా
అక్టోబరు 11, 2016న నూతనంగా ఏర్పడిన ఈ జిల్లాలో 3 రెవెన్యూ డివిజన్లు,22 మండలాలు,నిర్జన గ్రామాలు (6)తో కలుపుకుని 381 రెవిన్యూ గ్రామాలు ఉన్నాయి.[2]
ధన్‌బాద్
Dhanbad district was constituted in 1956 by carving out the old Dhanbad subdivision Chas and Chandankiyari police stations of the Sadar subdivision of the erstwhile Manbhum district. Dhanbad is Police district since 1928. The re-organisation of the districts in the State of Bihar which took place after 1971 did not affect the district of Dhanbad. Dhanbad Municipality is the chief town and the headquarters of the district. In the year 1991, Bokaro District was constituted by carving out Chas Sub-division of Dhanbad district and Bermo Subdivision of Giridih District.