In which year did Mahatma Gandhi lead the Champaran movement against the indigo planters?

1917

The correct answer is Option 3- 1917

Mahatma Gandhi led the Champaran movement against the indigo planters in 1917.

The Champaran movement was a farmer's uprising that took place in the Champaran district of Bihar, India, during the British colonial period. The farmers were protesting against having to grow indigo with barely any payment for it. The indigo planters had a monopoly on the indigo trade and were forcing the farmers to grow indigo on their land, even though it was a less profitable crop than food crops.