Persons wishing to dispense beer or wine at their event must first obtain a temporary permit. Additional information is available here. http://www.in.gov/atc/2409.htm
If you wish to dispense liquor at your event, you must hire a licensed alcoholic beverage caterer. Many bars and restaurants that hold liquor permits also hold catering permits. If you are unable to locate any licensed caterers in your area, contact the Excise police to learn who holds catering permits in your area. http://www.in.gov/atc/isep/2379.htm