Nagri is a CD block that forms an administrative division in the Ranchi Sadar subdivision of Ranchi district, in the Indian state of Jharkhand.

Jharkhand is one of the states affected by Maoist activities. As of 2012^[update], Ranchi district was among the highly affected districts in the state. "Areas of Tamar, Bundu, Sonahatu, Angarha, Sikidari Police Stations and Rahe O.P. have been widely affected by activities of CPI (Maoist) group till the end of year 2009. At the end of year 2010, The activities of CPI (Maoist) group has been minimized up to almost zero level."

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." Civilian fatalities, a key index of security in a region, declined from 20 in 2019, to 8 in 2020, the lowest in this category since 2000, when there were 13 such fatalities. The 28 total fatalities recorded in 2020 are also the lowest overall fatalities recorded in the state in a year since 2000, when they stood at 36.

Ranchi being the capital city of the state has always been under minute scrutiny of all. The arrest, from his home in Ranchi on 9 October 2020, by the NIA, of 83-years old Stan Swamy, Jesuit priest and activist, working with tribals for decades, and his subsequent death in custody, in a Mumbai hospital, on 5 July 2021, has been widely discussed.

Nagri is located at 23°19′58″N 85°11′12″E / 23.3327°N 85.1868°E / 23.3327; 85.1868.

Nagri CD block is located on the Ranchi plateau proper. It has an average elevation of 2,140 feet (650 m) above mean sea level and the land is undulating.

Nagri CD block is bounded by the Ratu and Kanke CD blocks on the north, Namkum CD block on the east, Karra CD block in Khunti district on the south and Itki CD block on the west.

Nagri CD block has an area of 121.93 km².Nagri police station serves Nagri CD block. The headquarters of Nagri CD block is located at Nagri town.