The Samsung Galaxy Grand is an Android smartphone manufactured by Samsung Electronics and released in January 2013. It is also known as the Samsung Galaxy Z I9082Z in India.
Models: GT-I9082, GT-I9082Z, GT-I9082L.
Has the phone got wet or was it dropped ? what are you doing when it heats ? What part of the phone is getting hot ? Is the battery hot and is it swelled at all . If the battery has swelled get rid of it and get a new one . The battery that is , not the phone