Indra, assuming the form of a Brahmana, came to him for alms. Ever engaged to do good to Arjuna, he asked for the armour.
तमिन्द्रो ब्राह्मणो भूत्वा भिक्षार्थी समुपागमत्। कुण्डले प्रार्थयामास कवचं च महाद्युतिः॥