Eklavya's Supreme Sacrifice
एकलव्य की गुरु दक्षिणा
Quick Answer
Eklavya, a tribal boy, was rejected by Dronacharya as a student but mastered archery by practicing before Drona's clay idol. When Drona demanded his right thumb as guru dakshina, Eklavya cut it off without hesitation, sacrificing his unmatched skill.