The laws governing the legal use, storage and carrying of firearms are constantly changing. Below are the applicable laws in the State of Indiana as of 3/06/2013. The below information is designed to be a guide and not the final word. If you have specific questions, please refer to the Indiana State legislation at in.gov. Another great resource is a Firearm FAQ, provided by the Government of Indiana.

35-47-2-21 Sec. 21. Recognition of retail dealers' licenses and licenses to carry handguns issued by other states
(a) Retail dealers' licenses issued by other states or foreign countries will
not be recognized in Indiana except for sales at wholesale.
(b) Licenses to carry handguns, issued by other states or foreign countries, will be recognized
according to the terms thereof but only while the holders are not residents of Indiana.

Indiana honors valid Concealed Carry Permit/License issued by all other state.

A Indiana Resident Unlimited License is recognized by the states listed below:
Alabama, Alaska, Arizona, Arkansas, Colorado, Florida, Georgia, Idaho, Indiana, Iowa, Kentucky, Louisiana, Michigan, Mississippi, Missouri, Montana, New Hampshire, North Carolina, North Dakota, Oklahoma, Pennsylvania, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Wisconsin, Wyoming

A Indiana Non-Resident Unlimited License is recognized by the states listed below:
Alabama, Alaska, Arizona, Arkansas, Georgia, Idaho, Indiana, Iowa, Kentucky, Louisiana, Mississippi, Missouri, Montana, North Carolina, North Dakota, Oklahoma, Pennsylvania, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Wisconsin, Wyoming