"The Poison Tree" is a thought-provoking novel written by Bankim Chandra Chatterjee, one of the leading Bengali novelists of the 19th century. The book was originally published in Bengali in 1884 under the title "Rajani". It is a story of two families: the wealthy Roy family and the impoverished Gupta family, set in the backdrop of colonial India.

The novel is a critique of the social and economic disparities in colonial India, and the role of the British in perpetuating these inequalities. It also explores themes such as love, family, loyalty, and betrayal.

The plot revolves around the characters of Madhusudan Gupta, an upright and honest man who falls on hard times, and his daughter, Kumudini. The Roy family, headed by the wealthy businessman, Brajendra Narayan Roy, takes an interest in Kumudini, and soon she becomes the object of desire for the Roy family's youngest son, Amarendra. But their love is not meant to be, as the class differences between the two families become a barrier.

The book is written in a style that is both engaging and accessible to readers of all ages. It captures the essence of life in colonial India, and provides a glimpse into the lives of ordinary people, who struggled to make ends meet in the face of great adversity.

"The Poison Tree" remains a popular and enduring work of Indian literature. It has been translated into English and other languages, and has been adapted for the screen and stage. The book's enduring popularity lies in its powerful message about the dangers of social and economic inequality, and the importance of love and family in the face of adversity. It is a timeless masterpiece that continues to resonate with readers around the world.

In conclusion, "The Poison Tree" is a must-read for anyone interested in Indian literature and culture. It is a powerful and moving work that deserves to be read and appreciated by readers of all ages and backgrounds. Bankim Chandra Chatterjee's masterpiece is an unforgettable journey through the complex social and economic realities of colonial India, and a testament to the enduring power of the human spirit in the face of great adversity.