Anas' decision to stay back comes after spending the 2011-12 and 2012-13 seasons successfully at the club.
The 26-year-old Kerala-born defender played a key-role in the Pune FC's defensive line and helped his side earn the distinction of third best in conceding goals in I-League 2012-13.
"Anas has been instrumental for us in last season's campaign. He is a gritty customer and plays with a lot of passion. Everyone at Pune FC wishes Anas continued success with the club," Pune FC's Head of Operations, Chirag Tanna said in a statement.
The defender also started in two Durand Cup games, three in Federation Cup and one in the IFA Shield respectively.
Anas' emergence as a solid no-nonsense defender also won him two awards at the season-ending annual Awards Night. He picked up the "Man of Steel" award for his consistency and was adjudged "Player of the Year 2013", making him the first Indian to bag the honour at Pune FC.