Respected Sir/ Madam,
I am writing this email in reference to the leave application I have submitted on __/__/____ (mention date) bearing the application number __________ (application number) for requesting leave for ________ (number of days) days.
I beg to state that the same is still pending approval and has not yet been approved. In this regard, I request you to kindly approve the said leave at the earliest. I shall be highly obliged for your kind support.
In case of any query, you may contact me at _________ (contact number) or write me at ________@___.__ (email address).
__________ (Employee ID)