Answer : 1. "संवैधानिक सुधारों के लिए अपना आंदोलन कर ।"
Explanation :

Their powerful economic critique of imperialism was to serve as the main plank of nationalist agitation in the later years of active mass struggle against British Colonialism. They had, by their economic agitation, undermined the moral foundations of British rule by exposing its cruel, exploitative character.