Subsequent towhich 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?

1. A

   The Poona Pact

   The Poona Pact. After Poona, Gandhi turned more sharply to Harijan work, which he had long argued against untouchability as a Hindu reformer.

2. B

   The Gandhi-Irwin Agreement (Delhi Pact)

   Gandhi-Irwin / Delhi Pact. 1931 political truce; not this social turn as keyed.

3. C

   Arrest of Congress leadership at the time of the Quit India Movement.

   Quit India arrests. 1942.

4. D

   Promulgation of the Government of India Act,

   Government of India Act. 1935 statute; not the trigger keyed here.

Summary. Official Set A key is (a) the Poona Pact (1932). After the Communal Award and the Poona Pact with Ambedkar, Gandhi’s Harijan campaign intensified. That is the event UPSC keys, not Irwin Pact, Quit India, or the 1935 Act.