1. IOR/L/E/9/739 Reference (shelfmark): IOR/L/E/9/739 Title: Collection 116/1 Opium and Drugs: General - Opium habit in India: reports by Lt Col R N Chopra Collection Area: India Office Records and Private Papers Languages: English Date Range: Apr 1929-May 1931 Extent: 1 file
2. IOR/L/E/9/740 Reference (shelfmark): IOR/L/E/9/740 Title: Collection 116/2 Opium and Drugs: General - League of Nations: position in regard to Indian hemp Collection Area: India Office Records and Private Papers Languages: English Date Range: Jul 1934-Jun 1940 Extent: 1 file