C. Rajagopalachari organized a march on the Tanjore coast in April 1930 to break the Salt Law as part of the broader Civil Disobedience Movement led by Mahatma Gandhi. This initiative was significant in challenging British colonial authority and resonating with the masses, emphasizing the symbol of salt as a representation of resistance against oppressive laws. It illustrated the effectiveness of non-violent protest and mass mobilization in the struggle for Indian independence, which is a key focus in UPSC Prelims GS Paper I regarding Indian freedom movements and socio-political reforms.