ANSWER:

This is permissible providing it does not contain anything that is haram such as music, free mixing, photography of women, extravagance etc.

https://youtu.be/kZpxbUxvsEo

Sheikh, here in my community people used to have many feast festivals during maraige and after marraige like feast functions on 2 day of wedding similarly on 7th, 10th etc where(israf) lot n lot of food is served and most(tons) of the food goes waste. Is it permissible to attend these functions.