Menander I Soter (Milinda in Indian texts) ruled a significant part of the Indo-Greek Kingdom in the 2nd century BCE, covering Gandhara, Punjab, and possibly parts of Rajasthan and Uttar Pradesh. He is renowned for his conversion to Buddhism and his philosophical discussions with the Buddhist monk Nagasena, recorded in the Pali text 'Milinda Panha' (Questions of Milinda), which solidified his fame and importance in Indian history and Buddhist tradition. His extensive coinage also provides valuable historical information.