[1] According to the Jharkhand Police spokesperson and Inspector General (IG) Saket Singh, as reported on 8 December 2020, "The activities of CPI-Maoist are now confined to small pockets in the state because of our efforts."

[3] A major portion of the district is a part of the Damodar trough on the Chota Nagpur Plateau.

The main tributaries of Damodar in the area are Naikari, Bhairavi/ Bhera and Bokaro.

[10] According to the 2011 Census of India, Mandu CD block had a total population of 253,032, of which 133,757 were rural and 119,275 were urban.

[8] Mandu, Taping, Barughutu, Kedla, Ara, Kuju, Topa, Orla, Sanri alias Tilaiya, Bongabar and Seota are census towns in the Mandu CD block.

The gender disparity (the difference between female and male literacy rates) was 19.36%.

[13] Languages of Mandu CD block (2011)[14] At the time of the 2011 census, 57.41% of the population spoke Khortha, 16.06% Hindi, 7.18% Santali, 6.89% Urdu, 3.19% Bhojpuri, 2.81% Magahi, 1.57% Nagpuri and 1.42% Bengali as their first language.

[18] The projects of the Kuju Area of Central Coalfields are: Saruberia underground, Saruberia opencast, Ara open cast, Kuju underground, Topa underground, Topa open cast, Pindra underground, Pindra open cast, Pundi open cast, Karma opencast.

[20] Tata Steel owns and operates the West Bokaro colliery and Ghatotand Washery.

[21][22] The Koderma–Hazaribagh–Barkakana–Ranchi line passes though this block and there are stations at Kuju and Mandu.