● Indigo planting started in Bengal as early as 1777. It was first planted by Louis Bonard. ● When the British Power expanded, the Indigo planting was emphasized because of the high demand for the Blue Dye in Europe. ● The peasants were compelled to plant Indigo rather than the food Crops. ● The peasants were provided loans called 'dadon' for indigo planting at a very high-interest rate. ● Indigo farmers received very low returns for their crops . ● The land under Indigo degraded for the cultivation of any further crop. ● The contract conditions under which Indigo planters kept the cultivators were harsh. ● The loan made the people indebted and resulted in a rebellion. So, option 1 is correct.