The decided venue is Cent Zone university ground. Sample Invitation Letter to Invite Chief Guest for Annual Sports Day. I know a lot about invitation letters. An invitation letter is a formal request to invite a person to an event. Date… Chief Guest name… Address… Contact Information… Subject: Invitation Letter for Annual Sports Day. Dear (Sir/Name), We are really pleased to inform you about the … If you are the one who arranges a function and needed to call a chief guest through a request letter inviting him / her, then the invitation wordings provided below will be more helpful to you. We would like to invite you to attend the located at on at