1. Collector of Governtment Customs, Cawnpore, to Board, 16 October 1807, C.C.P.R. (C), 30 October 1807, I.O.L.
2. Collector of Government Customs, Agra, to Board, 23 May 1816, C.C.P.R. (C), 16 July 1816, I.O.L.
3. C.C.P.R., 17 December 1807, I.O.L.
4. Barlow's Report, N.A.I.