1. IOR/Z/L/PS Reference (shelfmark): IOR/Z/L/PS Title: Indexes and Registers to the Political and Secret Department Records Collection Area: India Office Records and Private Papers Languages: English Date Range: 1784-1950 Extent: Approximately 258 volumes
2. IOR/Z/L/PS/3 Reference (shelfmark): IOR/Z/L/PS/3 Title: Home Correspondence Collection Area: India Office Records and Private Papers Languages: English Date Range: 1802-1896 Extent: 31 volumes
3. IOR/Z/L/PS/15 Reference (shelfmark): IOR/Z/L/PS/15 Title: Honours Correspondence Collection Area: India Office Records and Private Papers Languages: English Date Range: 1867-1930 Extent: 17 volumes
4. IOR/Z/L/PS/16 Reference (shelfmark): IOR/Z/L/PS/16 Title: Consular Correspondence Collection Area: India Office Records and Private Papers Languages: English Date Range: 1886-1930 Extent: 4 volumes
5. IOR/Z/L/PS/17 Reference (shelfmark): IOR/Z/L/PS/17 Title: Parliamentary Questions Collection Area: India Office Records and Private Papers Languages: English Date Range: 1843-1911 Extent: 3 volumes
6. IOR/Z/L/PS/5 Reference (shelfmark): IOR/Z/L/PS/5 Title: Secret Correspondence with India Collection Area: India Office Records and Private Papers Languages: English Date Range: 1802-1874 Extent: 7 volumes
7. IOR/Z/L/PS/6 Reference (shelfmark): IOR/Z/L/PS/6 Title: Political Correspondence with India Collection Area: India Office Records and Private Papers Languages: English Date Range: 1792-1874 Extent: 21 volumes
8. IOR/Z/L/PS/11 Reference (shelfmark): IOR/Z/L/PS/11 Title: Political and Secret Files Collection Area: India Office Records and Private Papers Languages: English Date Range: 1912-1930 Extent: 33 volumes
9. IOR/Z/L/PS/9 Reference (shelfmark): IOR/Z/L/PS/9 Title: Correspondence with areas outside India Collection Area: India Office Records and Private Papers Languages: English Date Range: 1860-1896 Extent: 23 volumes
10. IOR/Z/L/PS/20 Reference (shelfmark): IOR/Z/L/PS/20 Title: Political and Secret Department Library Collection Area: India Office Records and Private Papers Languages: English Date Range: c 1800-c 1945 Extent: 2 volumes