Original:  in addition to his native language of Hindko language and the Arabiclanguage from his graduate study, He was also fluent in English, Urdu, Pashto and Greek, and could read and understand Persian.
Revised:  in addition to his native language of Hindko and Arabic, he was also fluent in English, Urdu, Pashto and Greek, and could read and understand Persian.
Edit intent: clarity