Mahatma Gandhi's return to India in 1915 marked a significant turning point in the nationalist movement, leading to his engagement in pivotal issues such as the Champaran and Kheda movements. His philosophy of non-cooperation stirred widespread popular involvement, especially among the masses, transforming the Indian National Congress into a movement representative of the broader societal spectrum. The later Salt Satyagraha galvanized national and international attention, establishing Gandhi as a central figure in the quest for Indian independence amid the evolving political landscape marked by communal tensions and socio-economic challenges.