ANSWER:

It’s not permissible at all to participate with them in their kufr celebrations and gathering. 

You can eat the halal food if they send it to you, without you joining them.

QUESTION: sheikh Is it permissible for a muslim to accept invitation of non Muslim for food in their festival such as Christmas, holi, etc. [Hint: the food is halal]

Halal/Haram Matters, Religions |