Ranchi Bihar(now JH) me hone se pehle Bengal me hi tha.. Jharsuguda tak pura Bengal tha .. Baad m Bihar m aa gaya Purulia(then Manbhum) ko leke. Bengal Manbhum movement hone k baad Purulia WB m chala gaya in 1956 may be. Ranchi 2000 me Bihar se alag hoke Jharkhand ka capital baan gaya.