Please try and develop a draft and share it here for members to correct. We can readily provide you a template. However that will not help you to sharpen your writing skills.
Please find below some tips to write the circular
Start the circular like " We are very much happy to inform you all.. / we are glad to inform you all ...we are proud to inform you all....
Brief whether it is state level or national level
If need be refer number of participants took part like " out of__ he was selected as __"
end may be like " let us all congratulate...."
1st August 2019 From India, Madras