The preparation for the festival starts at least couple of days ahead. However, most of them get the idol on the day of the festival. It's become a custom these days to take the idol on the same day to leave in the near by temples for immersion, that happens in 10 days time.
We have a tradition of having the idol at home depending on the day the immersion day falls. It will be either 5, 3 or 1 day. This year we are going to have the idol for 3 days and all 3 days it has to be vegetarian food prepared at home. Including neivedyam offered to Lord Ganesh.
Some pictures for you to enjoy