I actually feel bad for Lakshman. He somehow gives me an innocent cute and detrimental kind of a kid
Actually seeing Abhimanyu raging and Destroying all who came into their way, Drona, Dury, Karna etc. decided to move back and restrategize. As they were returning, Lakshman suddenly turned back and started moving towards Abhimanyu. They tried to stop him, but he continued.
Sensing the fate for his son probably, Duryodhan too started to return despite Karna trying to stop him since Abhimanyu seemed invincible then.
Finally seeing no other options all of them started returning to the spot where Abhimanyu was.
Abhimanyu and Lakshman had a duel battle and Lakshman was soon overpowered. Abhimanyu then tied him by arrows and before Dury n gang could have saved Lakshman he got killed.
Duryodhan witnessed the death of his son, and was filled with rage. He then proclaimed that Abhimanyu has to die the same day in whatever way possible. He ordered his cronies that he wants them to do whatever they want but ensure the death of Abhimanyu
Rest is definitely history