Khalishakhali Secondary School under Patuakhali sadar upazilla was established by the then chairman of Badarpur Union, Sree Amullya Kumar Datta, Alhaj Md. Syed Ahmed and the local people in 1970 as a junior secondary school. Then under the permission of BISE Jessore. The school was going on as a secondary school in 1973. It was recognised by the board and then The Headmaster was Mr. Abdur Razzaque. By the donetion of Babul Kumar Datta, son of Amulya Kumar Datta, Alhaj Md. Syed Ahmed and the help of local people. The school was running well. Regular committee and Recognition are help full to lead the school’s activities smoothly. The Authority wishes the improvement of the school.