Partha has the master of the world Vishnu himself as his driver besides he is a hero, is very powerful and is virtuous at the same time.
यस्य चक्रे स्वयं विष्णुः सारथ्यं जगतः प्रभुः। मनस्वी बलवाञ्शूरः कृतास्त्रोऽथ तपोधनः॥