Solution:The above statement is true.
The Salt March was a thread to unite the nation because all of the countries came together with unity in the non-cooperation movement. When Non-cooperation was launched nationwide, then most people participated. But when the Non-Cooperation movement merged with the Khilafat and Swadeshi movements, the whole of India came together. But after Gandhiji withdrew from the Non-cooperation, the unity of the people ended. Then Gandhiji chose the Salt march to unite the nation because salt was the topic of sensation in India. Britishers imposed a salt law and levied a salt tax on Indians, so salt was a common topic to unite the nation.