[Here briefly describe on sample leave application from office for final semester exams in university during the job with salary or pay. You should follow the official rules and regulations and write this letter in a formal manner. You can modify this format as your requirement.]
The HR Admin,
Sub: Office Leave Application for Semester Exams
It is stated that I am a (Job designation) of (Department name) in (Company Name). Along with my job I have been doing my (educational degree name, e.g., Bachelors in Sciences/MBA) from a nearby university. Sir, throughout my job, I have worked with a great passion for the company and my conduct has been good with my coworkers. Also, I have been very regular and punctual. I am currently enrolled in the 6th/last semester of my study. In the coming week, the final exams for this semester are to take place. Unfortunately, the exams and company working timings are overlapping. If I will come to work next week then I will not be able to attend my final exams. And it will be a great loss for me as I always have wanted to be an (Educational degree name) since the start of my career.
Dear Sir, you are requested to give me leave for the coming week so that I may be able to carry on my studies. I shall be thankful to you for this favor and I hope that you will grant me leave for the prescribed time period.