To, [Guest's Name], [Designation], [Organisation], [City]
Date: [Date]
Subject: Invitation to be the Chief Guest at our [event name]
Respected Sir/Madam,
On behalf of [School/College Name], it gives me great pleasure to invite you to be the Chief Guest at our [event, e.g. Annual Day celebration], to be held on [date] at [time] in [venue].
Your journey as [one line on the guest's achievement, e.g. a distinguished scientist and an alumnus of this institution] has been a source of great inspiration for our students. Your presence and words of guidance would make the occasion truly memorable for them.
The programme will include [brief highlights, e.g. prize distribution and cultural performances] and will conclude by [time]. We would be honoured by your kind consent, and a formal schedule will be shared as per your convenience.
We eagerly look forward to welcoming you.
Yours sincerely, [Your Name] [Designation, e.g. Head Student Coordinator] [School/College Name] [Contact Number]