One of his fasts, in 1932, protested the British government's treatment of India's untouchables
[DOC] [TLE] Gandhi begins fast in protest of caste separation - Sep 16, 1932 ... [PAR] Jailed by the British government from 1922-24, he withdrew from political action 
for a ... After his return to India in January 1932, Gandhi wasted no time 
beginning another civil ... a fast unto death in order to protest British support of a 
new Indian ... caste Indians and the untouchables that reversed the separation 
decision.