Subsequent to which one of the following events, Gandhiji, who consistently opposed untouchability and appealed for its eradication from all spheres, decided to include the upliftment of 'Harijans' in his political and social programme?

The Poona Pact (1932) is the correct answer because it resolved the crisis over separate electorates for the depressed classes, leading Gandhi to establish the Harijan Sevak Sangh and launch a nationwide campaign for the eradication of untouchability. The Gandhi-Irwin Pact (1931) is a common distractor, but it primarily focused on the suspension of the Civil Disobedience Movement and participation in the Round Table Conference rather than social reform. This question tests the understanding of the strategic shift in Gandhi’s leadership from active political agitation to a constructive social program following the communal award controversy.