Dear Shaik Irfan,
When you say "Employee Vacation", probably you meant to say "Employee Leave". I hope my guess is correct.
If my guess is correct, then I recommend you use the right terminology for the matters related to HR. "Employee Leave", means authorised absence from the work. When an employee absents from work, he/she may not go on vacation. He/she may spend time for some other activities like house renovation, attending to the sick family member and so on.
Before the commencement of the new year, generally, HODs prepare a leave plan and submit it to the higher authorities. However, this activity repeats year after year. Therefore, the HR professionals are expected to prepare a draft for what is routine and repetitive. Please prepare the draft on your own and upload it here. Some senior like me will correct it.
Thanks,
Dinesh Divekar