Write a letter to your friend, congratulating him on his brilliant success in the XII class examination.
15, Model Town,
Delhi.
(Date)
My dear Sudhir,
The declaration of your result was a pleasant surprise to me when I opened the newspaper today in the morning. I am glad to read that you have not only passed the XII class examination, but your name also appears on the merit list.
Please accept my heartiest congratulations and convey the same to your revered parents also. You had burnt the midnight oil. You really deserve this grand success. I hope you will maintain this commanding position forever.
I am waiting for a grand party from you as earlier promised by you.
Convey my respects to your revered parents.
Yours sincerely
X.Y.Z