The exact layout examiners expect for a formal letter and a formal email, with a ready model answer.
I wish to draw your attention to the non-functioning streetlights in our colony. For the past two weeks, the entire lane has remained dark after sunset, causing safety concerns for residents. I request you to arrange a repair at the earliest. Thank you.
Same tone, shorter. Needs: a clear subject, a greeting, 2–3 crisp sentences, and a sign-off with your name. Skip addresses.
Exam tip: marks are split between format and content — never skip the subject line or the sign-off.