As a last ditch attempt to try and rescue Achillas, Lord Kite wanted to promise a three month long truce in exchange for his general.
However, Alexander was not interested.
After the consecutive winnings, the man doubted the Heeat family would be willing to launch any large scale attacks any time soon.
In fact, Alexander would be glad to see them attack his prepared lines. The result of that endeavor was already known.
Thus the very bottom line laid out by Alexander was for the enemy to leave the city, handing over the defense of the city to him.
This however was unacceptable to the other side, as Lord Kite did not have the authority to do such a thing even if he wanted to.
Thus after a few hours of bitter bickering, Lord Kite was forced to leave empty handed.