TSB Union () abbreviated as Tilak Swalpa Bahirdia Union is a union parishad in Rupsa Upazila of Khulna District, in Khulna Division, Bangladesh.
Education Higher secondary schools Kajdia Collegiate School Patharghata Secondary School Kajdia Secondary Girls' School Kishore Kollan Secondary School Home of Joy School
Madrasahs Khadijatul Kubra (R) Mahila Madrasah Rupsa Darussunntat Dakhil Madrasah Tilak Siddiqui-e Akbar Dakhil Madrasa
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