I would like to inform you that I am ____________(name), working as a ____________ (designation) in your reputed organization for the last ____________ (duration).
This is to bring to your knowledge that I will be needing ____ (days) leave from work. The reason being I have to take care of my ________ (mention relation) as he/ she is not in a condition to manage things by himself/ herself.
I hope that you will consider my request and sanction my leaves till __/__/_____ (date). Kindly do the needful at the earliest. Thank you for your time and support in this regard. I am waiting for your response.
_________ (Employee ID),
_________ (Contact details)