Haryana Open School Textbook 10th Edition 2023 Direct link to get HBSE Open School 10th Textbook 2023 online. Haryana's Board of School Education just released the 10th Textbook 2023 for students in Class 10. Download the Haryana 10th Open School Textbook 2023 from the Haryana Board of School Education (HBSE). Haryana Open School 10th Textbook 2023 For students in 10th and 12th grades, the Open School Examination was held for both regular and public exam students. In August 2023, all candidates got their Syllabus/Admit Card, and the test began in 2023.