The erstwhile Garhwa Subdivision of Palamau district consisting of 8 Blocks was separated from Palamau district as an independent district “Garhwa” with effect from 1st April 1991. It is situated on Southwest corner of Palamau division, which lies between 23060and 24039 N latitude and 83022 and 84000 E longitude. The district is surrounded by river Sone in the north; Palamau district and area of Chhatisgarh in the south; Palamau district in the east and Sarguja district of Chhatisgarh and Sonebhadra district of U.P. in the west. Garhwa district is a part of Palamau Commissionery consisting of 14 blocks and two subdivisions namely Garhwa & Nagar-Untrai. At the time of creation of new district Garhwa, there were eight old blocks namely :-
1. Garhwa, 2. Meral, 3. Ranka, 4. Bhandariya, 5. Majhiyaon, 6. Nagar-Untrai, 7. Bhawanathpur, and 8. Dhurki. Later on 6 new blocks were created from old blocks on administrative ground namely 1. Dandai, 2. Chiniya, 3. Kharoundhi, 4. Ramna, 5. Ramkanda and 6. Kandi. Later on 5 new blocks were created from old 14 blocks on administrative ground namely 1. Danda, 2. Ketar, 3. Bishunpura, 4. Bardiha and 5. Sagma.
So presently there are 20 blocks in Garhwa district. There are 196 Gram Panchayats. 916 inhabited villages and 62 un-habited (Bechiragi) villages in this district. This district has two police sub-division named Garhwa and Nagar-Untrai. With eight police stations i.e.
1. Garhwa 2. Meral 3. Ranka 4. Bhandariya 5. Majhiyaon 6. Nagar-Untrai 7. Bhawanathpur and 8. Dhurki.