Answer : 1859
Explanation: Indigo Revolt was started in Bengal ( Krishnanagar, Nadia) in 1859. It was started by Bishnucharan Biswas and Digambar Biswas. In 1860 Dinabandhu Mitra come out with the play Nildarpan based on Indigo movement. It was translated in English by Michael Madhusudan Dutta and published by Rev. James Long. Because of this, he was sentenced to jail for sedition charges.