1956 आव गोजाम धनबाद जिलाखौ , सिगांनि मनभुम जिलानि सदर महकुमानि सास आरो सन्दनकियारि थानाफोरखौ दानखना दिहुननानै गोजाम धनबाद जिलाखौ दानाय जादोंमोन ।
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 .