Gradually their increasing influence led the de jure Mughal emperor Farrukh Siyar to grant them dastaks or permits for duty-free trade in Bengal in 1717.
Gradvis førte deres voksende indflydelse til, at den dejure mogulske kejser Farrukh Siyar gav dem dastaks eller tilladelser til toldfri handel i Bengalen i 1717.