Please check(self-edited)

Dear Vidya,

Accept my heartiest congratulations on receiving the best award for the year.  I have known you by sight and I am very happy about/with all your good achievements in your young age.  You are a role model to many students in these days.  I am really proud of you my friend.  Let all your dreams come true by God’s grace.  I want you to win many more honors and awards in the coming days.

Accept my heartiest congratulations on receiving the best award for the year.-->” Congratulations are certainly in order! Please accept my heartiest congratulations on winning the best student of the Year Award.”

I have known you by sight and I am very happy about/with all your good achievements in your young age.  --->”I have known you well , and I am sure we will be seeing and hearing a great deal more about your  remarkable achievements in the future. Keep up the good work.”

You are a role model to many students in these days.  I am really proud of you my friend.  Let all your dreams come true by God’s grace. -------->”No one deserves this award more than you. You are a great example to the rest of us.” or "You deserve to be proud of your achievement. May your future efforts be equally successful and rewarding."  May God help you in realizing your dreams."

  I want you to win many more honors and awards in the coming days.--> “I wish you unlimited success in the future.”