Question

what did Gandhi mean when he exclaimed the battle of champaran....

Answer 1

The battle of champaran was a Satyagraha.
It was Gandhi's first great experiment which was a accimplished in 1917.
He did a Satyagraha in champaran against growing the Indigo by which the Europeans were benifitted

Answer 2

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$\: \: \: \: \text{On request of Rajkumar Shukla, Gandhi went } \\ \text{to Champaran to realise the sufferings of the poor } \\ \text{ peasants. As Gandhi violeted the order to leave} \\ \text{ Champaran,it became a matter of civil disobedience} \\ \text{ and he was summoned to arrive the court. Gandhi} \\ \text{ cleverly telegraphed his influential friends and sent} \\ \text{ instructions to the ashram. Even he wired a full } \\ \text{report to the Viceroy.}</p><p>$

$\: \: \: \: \: \: \: \: \: \: \: \: \: \: \text{In the morning, the town of Motihari was } \\ \text{filled with peasants. Their spontaneous} \\ \text{ demonstration made the court authority to free } \\ \text{ Gandhi without any punishment. Many prominent } \\ \text{lawyers had come from Bihar to advise and help } \\ \text{Gandhi. Gandhi asked them what they would} \\ \text{ have done if he had been sent to the jail. At first} \\ \text{ they said that they would have gone back to } \\ \text{Bihar as their advice had not any use. But later} \\ \text{ Rajendra Prasad replied that they would follow} \\ \text{ him into the jail. This support from the lawyers} \\ \text{ made Gandhi extremely happy and confident.} \\ \text{ This confidence led him to exclaim that, "The } \\ \text{ battel of Champaran is won".}$