"Nil Darpan or, The Indigo Planting Mirror" is a Bengali play written by Dinabandhu Mitra. It was first published in 1860 and is considered a significant work of Bengali literature. The play sheds light on the exploitative practices of the indigo planters during the British colonial rule in India, particularly in the context of the indigo rebellion that took place in Bengal in the mid-19th century. "Nil Darpan" vividly portrays the plight of the indigo farmers and the brutal oppression they faced at the hands of the British indigo planters. It explores themes of social injustice, exploitation, peasant struggles, and the resilience of the marginalized. Through powerful dialogues and intense scenes, the play exposes the harsh realities of colonialism and raises questions about power dynamics, identity, and the fight for freedom and dignity.