To, The [Principal/Manager], [School/College/Company Name], [City] Date: [DD/MM/YYYY] Subject: Sick Leave Application Respected Sir/Madam, I am [Your Name], [your class/department], and I am suffering from [illness name, e.g., viral fever]. Due to my health condition, I am unable to attend [school/office] from [start date] to [end date]. Kindly grant me sick leave for the mentioned period. Thank you for your kind consideration. Yours sincerely, [Your Name] [Roll Number / Employee ID]