If the employer refuses to give you your last paycheck; you can file an Application for Wage Claim with the state's department of labor or consult a private attorney concerning your rights and how you should proceed. http://www.in.gov/dol/2345.htm
You have to demand your paycheck from your employer. If he doesn't want to pay, you can contact department of labor. You have to go to their office and fill up a form describing your situation. If they feel that you have a valid case, they will pursue your employer and demand your paycheck. Good luck.