Write a letter to the Editor, Delhi News, New Delhi, requesting him to address one of the weekly meetings of your society.
March 11, 20xx
Shri Ankur Kumar
We have a literary society in our school. We hold regular weekly meetings to promote the cause of literature. At every meeting we cordially invite a distinguished guest to address the students.
Would you be kind enough, Sir, to add our weekly meeting at 5 p.m. on 20th instant and enlighten us with the recent developments in literature?
We hope you will spare some precious time of yours for our benefit.
Secreatary, School Literary Society
(Note that the letter is concluded with yours faithfully (not) yours sincerely.)