HP Board XI or 11th Class Board Textbook 2023 Contain all Topics Covered in the Textbook 2023 you can Thoroughly Learn All Topics. Book Back Questions in the Textbook 2023 are Very Important for HP 11th Textbook 2023 the Preparation for Board Examinations. HP Board XI or 11th Class Board Textbook 2023 Contain all Topics Covered in the Textbook 2023 you can Thoroughly Learn All Topics. Book Back Questions in the Textbook 2023 are Very Important for the Preparation for Board Examinations.