1. IOR/Z/L/PS/1 Reference (shelfmark): IOR/Z/L/PS/1 Title: East India Company and India Office Minutes Collection Area: India Office Records and Private Papers Languages: English Date Range: 1836-1858 Extent: 1 volume
2. IOR/Z/L/PS/2 Reference (shelfmark): IOR/Z/L/PS/2 Title: Board's Secret Minutes and Political Previous Communications and Drafts Collection Area: India Office Records and Private Papers Languages: English Date Range: 1812-1858 Extent: 3 volumes
3. 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
4. IOR/Z/L/PS/4 Reference (shelfmark): IOR/Z/L/PS/4 Title: Correspondence with India in the Secret, Political and Foreign Departments Collection Area: India Office Records and Private Papers Languages: English Date Range: 1784-1858 Extent: 11 volumes
5. 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
6. 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
7. IOR/Z/L/PS/7 Reference (shelfmark): IOR/Z/L/PS/7 Title: Political and Secret Correspondence with India Collection Area: India Office Records and Private Papers Languages: English Date Range: 1875-1911 Extent: 37 volumes
8. 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
9. 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
10. IOR/Z/L/PS/12 Reference (shelfmark): IOR/Z/L/PS/12 Title: Political (External) Department Files and Collections Collection Area: India Office Records and Private Papers Languages: English Date Range: 1931-1950 Extent: 41 volumes