Answer:
The evidence is the statement made in the document where it was said: "You will be beaten but you must not resist; you must not even raise a hand to ward off any blows"
Explanation:
The document has been attached. It was from the march by gandhi's followers to the dharasana salt works.
From the document attached, the evidence that they were disciplined is where it was said: "You will be beaten but you must not resist; you must not even raise a hand to ward off any blows"