[These Sample causal application letter formats are applicable for leave to go abroad due to an emergency, visiting family, business meetings etc. Only office employees can follow these formats. You can modify the format as your requirement.]
Leave Application for Travel Abroad
The Managing Director,
Subject: Causal Leave for Travel Abroad
Dear Mr./Mrs. XYZ,
As you know I am a dedicated and hardworking employee in your office, and always have been punctual. I have a brother (or parents) who lives in (Country name) for last few years. Yesterday, he had an accident and he is in very critical condition (Show your situation). He lives there alone and I am his only family who can take care of him, but I have to travel all the way to (Country name). Kindly grant me leave for at least two weeks so I could visit my brother in this hour of need. Looking forward to hear from you.