Nigerian Uga Okpara decided to stay with East Bengal.
The defender accepted the club’s fresh contract to make it his fourth season with the Federation Cup and Calcutta Football League champion.
Okpara was the third foreigner to sign for East Bengal with Nigerian striker Edeh Chidi, and Japanese midfielder Ryuji Sueoka (from Dempo SC) having already accepted the offers from the club.
With English coach Trevor Morgan deciding not to continue for another season, East Bengal is on the lookout for another foreign coach.
The club is yet to decide on the fourth foreign player.
Meanwhile, the Australian forward Tolgay Ozbey, whom Mohun Bagan acquired after a transfer battle with East Bengal, has taken a release from the club.
Having played for just one season for Mohun Bagan, Ozbey refused to accept a renewed offer from the club which was substantially lower than the previous season, according to a club official.
Mohun Bagan has also renewed contracts with Nigerian striker Okolie Odafa and defender Anyiche Echezona and Moroccan coach Karim Bencherifa, who are expected to continue playing for another season.
In talks with Yusa
Mohun Bagan is also in talks with Japanese attacking-midfielder Katsumi Yusa, who may get a transfer from ONGC FC.