1. IOR/R/20/C/1-9 Reference (shelfmark): IOR/R/20/C/1-9 Title: Secret papers on security: intelligence reports Collection Area: India Office Records and Private Papers Languages: English Date Range: 1930-1935 Extent: 9 files
2. IOR/R/20/C/9 Reference (shelfmark): IOR/R/20/C/9 Title: File [] Khormaksar Defence Scheme Collection Area: India Office Records and Private Papers Languages: English Date Range: 1932-1935 Extent: 1 file
3. IOR/R/20/C/1 Reference (shelfmark): IOR/R/20/C/1 Title: File S6 Aden Defence Scheme Collection Area: India Office Records and Private Papers Languages: English Date Range: 1931-1937 Extent: 1 file (3 parts)
4. IOR/R/20/C/3 Reference (shelfmark): IOR/R/20/C/3 Title: File S11 Tribal Frontier Defence Scheme Collection Area: India Office Records and Private Papers Languages: English Date Range: 1930-1931 Extent: 1 file
5. IOR/R/20/C/5 Reference (shelfmark): IOR/R/20/C/5 Title: File S14 Defence Security Intelligence Service Collection Area: India Office Records and Private Papers Languages: English Date Range: 1931-1934 Extent: 1 file
6. IOR/R/20/C/8 Reference (shelfmark): IOR/R/20/C/8 Title: File S19 Japanese competition in colonial markets Collection Area: India Office Records and Private Papers Languages: English Date Range: 1933 Extent: 1 file
7. IOR/R/20/C/2 Reference (shelfmark): IOR/R/20/C/2 Title: File S7 Smuggling of arms into India from America Collection Area: India Office Records and Private Papers Languages: English Date Range: 1930-1931 Extent: 1 file
8. IOR/R/20/C/7 Reference (shelfmark): IOR/R/20/C/7 Title: File S18 Unauthorised possession of certain official documents on the Middle East by M A Tamini Collection Area: India Office Records and Private Papers Languages: English Date Range: 1931-1932 Extent: 1 file
9. IOR/R/20/C/4 Reference (shelfmark): IOR/R/20/C/4 Title: File S13 Sale of arms to Imam by man named Parisoto Collection Area: India Office Records and Private Papers Languages: English Date Range: 1930-1931 Extent: 1 file
10. IOR/R/20/C/6 Reference (shelfmark): IOR/R/20/C/6 Title: File S16 Colonial Section of the International Trade Unions Committee of Negro Workers and the Seamen's Section of the National Minority Movement (Indian Seamen's Union) Collection Area: India Office Records and Private Papers Languages: English Date Range: 1931 Extent: 1 file