Some business groups are beginning a new push for ending Indiana's longtime ban on Sunday alcohol sales at retail stores. The Hoosiers for Sunday Sales coalition is starting a campaign to build support for legislation that would allow such sales in groceries, pharmacies and liquor and convenience stores. The group includes the Indiana Chamber of Commerce and the Indiana Retail Council, which represents grocery stores. Liquor store owners have opposed lifting the Sunday ban, arguing the change would benefit large chain grocery and convenience stores.