स छिन्नधन्वा बलवान् रथशरक्ति सुदारुणाम्
sa chinnadhanvā balavān rathaśaraktī sudāruṇām
Sañjaya said: Though his bow had been cut down, the mighty warrior still unleashed a terribly fierce assault from his chariot—an act that underscores the relentless momentum of battle, where valor persists even after a key weapon is lost.
संजय उवाच
Even when a crucial support is lost (here, the bow), steadfast courage and resolve can continue; in the epic’s ethical frame, this reflects the kṣatriya ideal of not retreating from a righteous battlefield, while also highlighting the grim cost and intensity of war.
Sañjaya reports that a powerful fighter, despite having his bow severed, continues the fight from his chariot by launching a very fierce attack with arrows/weapon-casting, emphasizing the escalating ferocity of the Drona Parva battle.