sentences:  Admiral Tahir briefly tenured as the Chief of Naval Staff (CNS) of Pakistan Navy from 7 October 2005 until retiring from his military service on 7 October 2008.Upon the announcement to the four-star appointment in 2005, he superseded Vice-Admiral Mohammad Haroon who continued to serve under him as Vice-Chief of Naval Staff and was succeeded by newly appointed Admiral Noman Bashir in October 2008.Muhammad Afzal Tahir was born on 4 January 1949 in Lyallpur (now Faisalabad), Punjab, Pakistan to a Punjabi family who belonged to the Arain tribe.