Answer: (Detailed Solution Below)
Option D: Depressed classes
Detailed Solution:
The correct answer is “Depressed classes”.
The Pune Pact, or Pune Agreement, of 1932 was an agreement between Dr. B. R. Ambedkar and Mahatma Gandhi on behalf of the depressed classes (later termed Scheduled Castes) in India in connection with the Communal Award.
It was signed by Ambedkar on behalf of the depressed classes and by Madan Mohan Malviya on behalf of Hindus.