Short answers, pulled from the story.
The Japanese army launched their all-out offensive on the 18th of September 1941, and finished its withdrawal by the 6th of October 1941. The battle concluded when the battlefield returned to pre-battle condition after the Japanese forces retreated.
Lieutenant General Korechika Anami took command of the 11th Army in April 1941 and directed operations throughout the campaign. He approved the operational outline on the 24th of June 1941, setting September 15 as the initial launch date for the attack.
The Ninth Military Front suffered 70,672 killed, wounded, or missing during the battle. Specific corps losses included 10,373 men from the 4th Corps and 14,521 casualties from the 74th Corps.
Chiang Kai-Shek ordered the execution of Liao Lingqi because he deserted his post during the fall of Changsha. Chiang reprimanded him at the third Nanyue military conference held from October 16 to the 21st of October 1941, leading to his immediate death sentence on October 22.
The Japanese army deployed forty-one infantry battalions across four divisions and three task forces to fight the Chinese forces. These units included the 3rd, 4th, 6th, and 40th Divisions along with various task forces like the Hayabuchi and Araki task forces.