1. IOR/R/1/1/1-682 Reference (shelfmark): IOR/R/1/1/1-682 Title: Internal Branch Secret Proceedings Collection Area: India Office Records and Private Papers Languages: English Date Range: 1861-1922 Extent: 684 files
2. IOR/R/1/1/683-819 Reference (shelfmark): IOR/R/1/1/683-819 Title: Internal Branch 'A' Proceedings Collection Area: India Office Records and Private Papers Languages: English Date Range: 1885-1915 Extent: 137 files
3. IOR/R/1/1/820-878 Reference (shelfmark): IOR/R/1/1/820-878 Title: Internal Branch 'B' Proceedings Collection Area: India Office Records and Private Papers Languages: English Date Range: 1883-1922 Extent: 59 files
4. IOR/R/1/1/879-957 Reference (shelfmark): IOR/R/1/1/879-957 Title: Internal Branch Deposit Proceedings Collection Area: India Office Records and Private Papers Languages: English Date Range: 1910-1922 Extent: 79 files
5. IOR/R/1/1/958-966 Reference (shelfmark): IOR/R/1/1/958-966 Title: Reforms Branch Secret Proceedings Collection Area: India Office Records and Private Papers Languages: English Date Range: 1920-1921 Extent: 9 files
6. IOR/R/1/1/967 (Sub-series) Reference (shelfmark): IOR/R/1/1/967 (Sub-series) Title: Reforms Branch 'B' Proceedings Collection Area: India Office Records and Private Papers Languages: English Date Range: 1922 Extent: 1 file
7. IOR/R/1/1/968-1024 Reference (shelfmark): IOR/R/1/1/968-1024 Title: Internal Branch Section A, Confidential 'A' Proceedings Collection Area: India Office Records and Private Papers Languages: English Date Range: 1894-1915 Extent: 57 files
8. IOR/R/1/1/1025-1160 Reference (shelfmark): IOR/R/1/1/1025-1160 Title: Internal Branch Section A, Confidential 'B' Proceedings Collection Area: India Office Records and Private Papers Languages: English Date Range: 1892-1918 Extent: 136 files
9. IOR/R/1/1/1161-1176 Reference (shelfmark): IOR/R/1/1/1161-1176 Title: Internal Branch Section B, Confidential 'A' Proceedings Collection Area: India Office Records and Private Papers Languages: English Date Range: 1891-1908 Extent: 16 files
10. IOR/R/1/1/1177-1287 Reference (shelfmark): IOR/R/1/1/1177-1287 Title: Internal Branch Section B, Confidential 'B' Proceedings Collection Area: India Office Records and Private Papers Languages: English Date Range: 1891-1912 Extent: 111 files