The country celebrated Diwali Wednesday, but there are some pockets in Himachal Pradesh where the festival of lights is celebrated almost a month later. Reason? Locals believe the news of Lord Ram's return to Ayodhya reached late in these parts.
http://ummid.com/news/2011/October/27.10.2011/where_diwali_is_dark.htm
http://ummid.com/news/2011/October/27.10.2011/where_diwali_is_dark.htm