"...celebrated in families by performing traditional activities together in their homes..."
What kind of activities are performed in the house?
My Indian friend tells me that in India, it's customary to have a room where everyone can sleep in between meals. So, for them, the idea of a fun time hanging out with guests is getting stuffed with food, laying down to sleep, waking up, getting stuffed again, laying down to sleep, and performing the vicious cycle over and over.
That's what my obese cat does.