The correspondence dealing with Shah Zaman`s apprehended invasion of India was published in the Blue Book, XV (ii), 1806. Some of the important documents in the Wellesley Papers are correspondence with the President, Board of Control, regarding the possibility of a Sikh Afghan coalition for an invasion of Delhi and Oudh (1798) ; letters and Home Government despatches to Wellesley pertaining to the possible Sikh Afghan French Tipu Maratha combination against the British Indian Government and the latter`s measures to counteract the apprehended threat (1798-99).
1. Hasrat, B.J., The Punjab Papers. Hoshiarpur, 1970