Kumarkhali is an upazila of Kushtia District in the Division of Khulna, Bangladesh. It is famous for the Shelaidaha area, where the poet Rabindranath Tagore spent a considerable time of his youth.

Kushtia District is a district in the Khulna administrative division of western Bangladesh. Kushtia is the second largest municipality in Bangladesh and the eleventh largest city in the country. Kushtia has existed as a separate district since the partition of India. Prior to that, Kushtia was a part of Nadia district. Kushtia is the birthplace of many historical figures including Mir Mosharraf Hossain (1847–1912), Bagha Jatin (1879–1915) and Lalon (1774–1890). Nobel laureate poet Rabindranath Tagore lived his early life at Shelaidaha, a village in the district.