361. IOR/R/20/B/1609-1677 Reference (shelfmark): IOR/R/20/B/1609-1677 Title: Civil Secretary: Confidential (annual series) files Collection Area: India Office Records and Private Papers Languages: English Date Range: 1938-1951 Extent: 69 files
362. IOR/R/20/B/1678-1994 Reference (shelfmark): IOR/R/20/B/1678-1994 Title: Civil Secretary: World War II Ordinary files Collection Area: India Office Records and Private Papers Languages: English Date Range: 1939-1942 Extent: 317 files
363. IOR/R/20/B/1995-1999 Reference (shelfmark): IOR/R/20/B/1995-1999 Title: Civil Secretary: World War II Secret and Confidential files Collection Area: India Office Records and Private Papers Languages: English Date Range: 1939-1940 Extent: 5 files
364. IOR/R/20/B/2000-2077 Reference (shelfmark): IOR/R/20/B/2000-2077 Title: Chief Secretary: Ordinary files Collection Area: India Office Records and Private Papers Languages: English Date Range: 1941-1957 Extent: 78 files
365. IOR/R/20/B/2078-2110 Reference (shelfmark): IOR/R/20/B/2078-2110 Title: Chief Secretary: Secret files Collection Area: India Office Records and Private Papers Languages: English Date Range: 1941-1958 Extent: 29 files
366. IOR/R/20/B/2111-2149 Reference (shelfmark): IOR/R/20/B/2111-2149 Title: Chief Secretary: Most secret files Collection Area: India Office Records and Private Papers Languages: English Date Range: 1941-1955 Extent: 38 files
367. IOR/R/20/B/2150-2339 Reference (shelfmark): IOR/R/20/B/2150-2339 Title: Chief Secretary: Lands files Collection Area: India Office Records and Private Papers Languages: English Date Range: 1941-1963 Extent: 189 files
368. IOR/R/20/B/2340-2376 Reference (shelfmark): IOR/R/20/B/2340-2376 Title: Chief Secretary: Intelligence Summary files Collection Area: India Office Records and Private Papers Languages: English Date Range: 1941-1952 Extent: 37 files
369. IOR/R/20/B/2377-2653 Reference (shelfmark): IOR/R/20/B/2377-2653 Title: Chief Secretary: Secret and Top Secret files Collection Area: India Office Records and Private Papers Languages: English Date Range: 1941-1952 Extent: 267 files
370. IOR/R/20/B/2654-2679 Reference (shelfmark): IOR/R/20/B/2654-2679 Title: Chief Secretary: Secret Protectorate files Collection Area: India Office Records and Private Papers Languages: English Date Range: 1944-1955 Extent: 128 files