Here is a sample...
Dear friend ………… ,I hope you are well by the grace of the Almighty. I am well too. Please convey my regards to your parents. It’s been long since I received your last letter. So I have thought of writing this letter.As you know, our HSLC Examination will begin from 19th February and continue upto 9th March. After the examination, I will have ample time for travelling and sight-seeing. So, as soon as the examination is over, I have proposed to spend the holidays in my uncle’s house in Kolkata. There are various monuments and places to see in Kolkata such as Victoria Memorial, Vidyasagar Setu, Howrah Bridge, Botanical Garden, Birla Planetarium etc. I do hope you will accompany me. We will have great fun there. Kindly reply to this letter as soon as possible.Yours,
hello i asked how did you spend your vacation in summer holidays
it was a format dear .. you could set it on any of your topic