As soon as this feat was performed, he (Drona) embraced the son of Pandu (Arjuna) and thought that Drupada with his friends were already vanquished in the battle.
तस्मिन् कर्मणि संसिद्धे पर्यष्वजत पाण्डवम्। मेने च दुपदं संख्ये सानुबन्धं पराजितम्॥