Answer:
Dear *name*
I am so glad to hear of your success in in your class 10th final board examination. I felt so pleased that I wished I were there to congratulate you personally.
The result has proved that hard work brings good result. You were so much laborious. My parents always gave me your example. My parents already confident that you would come up with good result. They were very much pleased to hear about your progress.
Please be encouraged and continue you hard work so we get happiness news always. Your future is very bright. My father has sent you a lot of love and hearty congratulations on your bright performance.
With lots of love and best wishes again.
Yours lovey *name*