defect of Treaty of Bassein:
Peshwa Baji Rao II was in great danger, so he fled to Bassein where he signed the Treaty of Bassein with the British in 1802. It was a subsidiary treaty and the Peshwa was recognized as the head of the Maratha Kingdom. Although it was "nominal, the treaty was considered the crowning triumph of Wellesley’s subsidiary system. In accordance with this document, the foreign policy of the Marathas came under British central and therefore any action of the Maratha chiefs against the British was successfully prevented. That is the reason why the Marathas considered the treaty as a document of surrendering their independence.