Two days later amidst a German counterattack, undetected he and his men breached the enemy trench and destroyed a machine gun position, thwarting their offensive.

On July 21, 1944, during reconnaissance through a forest at Rēzekne, Rostiashvili spotted a group of enemy soldiers on a nearby road and surprised them, taking three POWs, including a radio operator.

At night, in the fighting for the station, the Sergeant and his men seized the Yakovlev farmhouse, defeating an enemy platoon and capturing their equipment.

When he was the only soldier from his squad still alive or able to fight, he took a light machine gun from one of the dead and resumed suppressing and killing the enemy.

[2][4] In January 1945 Rostiashvili's regiment fought several decisive battles in Poland and took part in the liberation of Krakow and Katowice.

A bridgehead was established near the village Zakrzów, but was heavily challenged and the division suffered great casualties.

On 24 March 1945, he was posthumously awarded the title Hero of the Soviet Union and initially buried at Głogówek, but then re-buried at the Bolesławiec military cemetery in Poland.