Hope this letter finds you in good health and spirit. We are immensely happy and pleased to invite you to witness the marriage of our son/daughter (Name) with (Bride/Groom and their Parent's name). The marriage is to be held on (Date) at (Time) at (place name). We would be very glad to have your esteemed presence on this special occasion to bless the couple.
The formal wedding invitation card will be sent to you soon but kindly treat this letter as a personal invitation from our side. Looking forward to meet you on this great occasion to share the joy with us and make the day even more special for us. Eagerly awaiting your arrival.