Hiralal Basu gets a job in Kolkata and comes to the Bagbazar area and stays at Madhu Mukherjee's house. The time is the early sixties of the 19th century. While staying there, he meets Basantasena. Ashrita Basantasena has just passed the teenage stage. A wonderful relationship develops between Hiralal and Basantasena. However, Barama, Binidi, Pishebaboo come between them. Janasaheb comes. Hiralal's friend Satu and his wife Leela are also in the flow of this event. But then life changes. Hiralal's survival faces a difficult test. His distance from Basantasena increases. Time passes gradually. Hiralal travels to various countries for work. Then life takes a turn for him again. And that wonderful relationship returns to life again. But then? Can Hiralal ever reach his desire? Can the Baul thread of his mind ever sow its seeds in the soil of life? 19th century Kolkata also comes to the reader like a character in a novel. 'Baul Suto' is a wonderful love story written in simple, smooth prose. This novel, through the ups and downs of life, brings us the eternal light of love.