kabandhas tatra cotpetuh
adhavanto bhatan mrdhe
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
Many headless trunks were generated on that battlefield. With weapons in their arms, those ghostly trunks, which could see with the eyes in the fallen heads, attacked the enemy soldiers.
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
It appears that the heroes who died on the battlefield immediately became ghosts, and although their heads had been severed from their bodies, new trunks were generated, and these new trunks, seeing with the eyes in the severed heads, began to attack the enemy. In other words, many ghosts were generated to join the fight, and thus new trunks appeared on the battlefield.