1. IOR/R/20/A/1-1059 Reference (shelfmark): IOR/R/20/A/1-1059 Title: General Compilation volumes Collection Area: India Office Records and Private Papers Languages: English Date Range: 1838-1905 Extent: 1058 volumes
2. IOR/R/20/A/1060-1170 Reference (shelfmark): IOR/R/20/A/1060-1170 Title: Select files Collection Area: India Office Records and Private Papers Languages: English Date Range: 1839-1930 Extent: 111 files
3. IOR/R/20/A/1171-1221 Reference (shelfmark): IOR/R/20/A/1171-1221 Title: Confidential Branch files Collection Area: India Office Records and Private Papers Languages: English Date Range: 1887-1905 Extent: 51 files
4. IOR/R/20/A/1222-1570 Reference (shelfmark): IOR/R/20/A/1222-1570 Title: Confidential files Collection Area: India Office Records and Private Papers Languages: English Date Range: 1880-1939 Extent: 350 files
5. IOR/R/20/A/1571-2922 Reference (shelfmark): IOR/R/20/A/1571-2922 Title: General subject files Collection Area: India Office Records and Private Papers Languages: English Date Range: 1906-1939 Extent: 1358 files
6. IOR/R/20/A/2923-3960 Reference (shelfmark): IOR/R/20/A/2923-3960 Title: Confidential files Collection Area: India Office Records and Private Papers Languages: English Date Range: 1912-1939 Extent: 1047 files
7. IOR/R/20/A/3961-4067 Reference (shelfmark): IOR/R/20/A/3961-4067 Title: Files relating to World War I Collection Area: India Office Records and Private Papers Languages: English Date Range: 1914-1933 Extent: 108 files
8. IOR/R/20/A/4068-4108 Reference (shelfmark): IOR/R/20/A/4068-4108 Title: World War I Confidential files Collection Area: India Office Records and Private Papers Languages: English Date Range: 1915-1940 Extent: 41 files
9. IOR/R/20/A/4109-4308 Reference (shelfmark): IOR/R/20/A/4109-4308 Title: Kamaran Administration files Collection Area: India Office Records and Private Papers Languages: English Date Range: 1917-1940 Extent: 200 files
10. IOR/R/20/A/4309-4366 Reference (shelfmark): IOR/R/20/A/4309-4366 Title: Colonial files Collection Area: India Office Records and Private Papers Languages: English Date Range: 1921-1939 Extent: 58 files