Uddin began his football career at West Ham United, working his way up through their youth and reserve teams where he was captain. He was in West Ham's victorious 1999 FA Youth Cup winning squad, the final a victory over Coventry City.
In February 2002 he moved to Sheffield Wednesday but moved swiftly on to Bristol Rovers. After a long run in the side an injury forced him to the sidelines. The following season he was loaned out to Hereford United and Telford United before his eventual release.
Anwar next signed for Dagenham & Redbridge during the summer of 2004 and he went on to captain the club. After a loan spell at Grays Athletic Anwar left Dagenham to sign for League Two club Barnet and he was again appointed captain ahead of the 2010–11 season. After a spell as caretaker assistant manager he joined Sutton United last season.
As the ink dried on the paperwork Widdrington commented "I am delighted to welcome Anwar to the club. All through our discussions he has really bought in to what we are trying to do at Priory Lane, he is up for the new season without a doubt. His experience is all part of the mix, the chemistry, that I am working towards building."