______________ [name of the recipient]
________________ [Address line 1 of the recipient]
________________ [Address line 2 of the recipient]
Dated: _______________ [dd/mm/yy]
Dear _________________ [first name of the recipient],
It gives me immense pleasure congratulating you on the occasion of your wedding engagement that took place on ___________________ [date on which the wedding engagement took place].
You and _________________ [fiancé or fiancée of the recipient] have been in a relationship since __________________ [date on which the relationship started]. We always knew that you guys are made for each other as you were madly in love. It is great that you have taken this relationship to the next level by getting engaged. Now that you guys are engaged, the marriage would take place soon. I am eagerly waiting for the marriage date.
I would like to wish both of you all the best.
______________ [name of the sender]