After Foolad was relegated to the Azadegan League, Montazeri signed with Esteghlal. He had been a regular player for the team in his first two seasons, where he won the Iran Pro League and the Hazfi Cup. He extended his contract with Esteghlal until 2013 where he won the league title in the 2012–13 season. He also reached the semi-final of the Asian Champions League with Esteghlal.
Montazeri transferred to Umm Salal on 5 January 2014. When Montazeri joined Umm Salal, the club was in danger of relegation, but under the leadership of Montazeri, Umm Salal avoided relegation and finished a solid 7th place.
His brother, Nadar Montazeri plays in the Iraniannational rugby team and his cousin, Roozbeh Madadi currently is a coach in the Iranian national football academy in Tehran.