Every year, Ganesha festival is celebrated with much pomp and show. It is the most important festival of Maharashtra. At the work place , there is not much activity happening except celebration of this festival. Many people don't report to work because they are busy visiting pandals all over the city, eating prasadam and enjoying the festival. The stage and decorations are very innovative and creative and most of the streets are decorated with twinkling rows of lights for miles.
If your are in Mumbai, you can see people dancing on streets, with loud music at every street. There are traffic jams because of the large procession during arrival and departure of Lord Ganesha. The festival lasts for 10 days during which people get attached to the idol and you may even see people weeping when they finally go to the seashore to drown the idol in the sea.
Truly this is the festival not to be missed if you are visiting Mumbai in the month of September.