I must have tell you about how much we all enjoyed by being at your home.
Remove the word have from this sentence.
We all loved to eat the food which was having real traditional south Indian chettinad taste.
This would be better written as, We all loved eating the food which had a real traditional south Indian Chettinad taste.
We would all love to see you all again in our place again.
Could be simplified by removing the first all, and using the word at instead of in, and not using the word again at the end of the sentence. You can just end the sentence with the word place.