He reached the rank of sergeant and commanded a squad of the 1372nd Infantry Regiment of the 417th Rifle Division of the 44th Army of the Southern Front.

On 10 August, during the battle for the Gornovesely [ru] farm (Krasnodar Krai), Avaliani, repelling an enemy attack, killed more than 20 German soldiers, including two officers, with machine-gun fire.

The next day, already on the offensive, he used machine gun fire to kill enemy soldiers advancing on his squad and remained in the ranks despite being wounded.

The next day, his squad fought defensive battles with infantry and armored vehicles of the enemy, who was trying to regain lost positions.

[Avaliani] let the ["Tiger"] to 40-45 meters and blinded the tank with shots from the anti-tank rifle, and then destroyed it with several anti-tank grenades and opened heavy fire at close range on enemy infantry, and when the cartridges ran out, with a Finnish knife in hand, he rushed at the surviving Nazis, killing another 12 Nazis.