Question

why did the nawabs of awadh and bengal try to do away with the system​

Answer 1

Answer:

The nawabs of Awadh and Bengal tried to do away with the jigirdari system to decrease Mughal influence in the region's by reducing the number of officeholders (jagirdas)

Answer 2

Answer:

what system?

if it is the jagirdari system then it is was to decrease mughal influance in the region by reducing the number of jagirdars appointed by the mughals

hope it helps