Invitation letters can be of both formal as well as informal types, depending on who it is being written to and what the purpose is.

EXAMPLE of Formal Invitation: Invitation letter for University Guest Lecture.

Central University

Professor Lori Smith

University of American Studies

Political Science Department

Delhi University

November 24, 2021

Dear Professor Lori Smith:

On behalf of Central University, I am very pleased to have the honor of inviting you to deliver lectures at our university as part of the Fulbright Guest Lecture Program. We would like you to speak on “The 2024 U.S. Presidential Election” and “Money in American Politics.”

We have arranged the lectures for December 11, 2021 at 10:00 a.m. and 3:00 p.m. We are expecting an audience of approximately 40 graduate students and faculty from the English and History Departments.  

We will provide on-campus accommodations for two nights, December 10 and 11. Please let us know if you will require any audio-visual equipment or additional technological support. Also, please keep us informed of your travel itinerary.

I look forward to meeting you in Delhi.

Best wishes.

Sincerely yours,

Smita Govind

Deputy Director

International Affairs Office

Central University

Tel: ……******

Fax: …….******

EXAMPLE of Informal Invitation: You are Deepak, living at 5, Jamia Road, Okhla. Write a letter to your friend inviting him to your brother’s marriage.

5, Jamia Road,

Okhla, Delhi

19 November, 2021

Dear Mohan,

You will be very glad to know that the marriage of my elder brother falls on 5th December, 2021. I cordially invite you to attend the wedding and grace the occasion.

The wedding party will leave for Agra on 5th December early in the morning. I have invited all my friends. We shall have an amazing time together. Uncle will present his dance and Rajesh will present a melodious tune to the orchestra. It will be a nice occasion to enjoy.

I hope you will not disappoint me.

Kind regards,


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