The sintering behavior of commercially available MgAl2O4 spinel was investigated under DC electric field in a range of 0 and 1000V/cm. Flash-sintering results in densification close to theoretical density at 1410 degrees C under the DC field of 1000V/cm, in comparison to the higher sintering temperature of 1650 degrees C in case of conventional sintering. It was observed that the fields less than 750V/cm had no significant effect on the densification behavior. An abrupt increase in power dissipation was observed corresponding to the occurrence of the flash event. A significant enhancement in grain size was observed in case of flash-sintered dense spinel samples. The gradual increase in the specimen conductivity observed in the electric field-assisted sintering (FAST) regime led to Joule heating within the specimen. The increased specimen temperature triggered further increment of current and Joule heating, resulting in the immediate densification.