Bhattacharja who featured for SC East Bengal in ISL 2021-22 is keen to better his performance in goal in the upcoming campaign having won the ISL Golden Glove award in ISL 2020-21 campaign.
Diagne's most recent stint was with Albanian outfit KF Vllaznia where he played under Chennaiyin's new boss Thomas Brdaric. He won the Albanian cup in 2021-22.
Raynier Fernandes began his football career with Air India before representing Maharashtra in the Santosh Trophy. His breakthrough season came in 2017-18 with Mohun Bagan AC.
Having spent a chunk of his footballing career with several Kolkata-based clubs, Das has found a new challenge in Bengaluru FC and aims to strengthen his game in new colours.
The 25-year-old, who joined the club as part of its residential academy in 2017, made his first-team debut in February 2019, before being named BFC B Player of the season later that year
Before joining the Juggernauts, the 29-years-old full-back played for ATK FC in ISL 2019-20 season and he saw the heavyweights from Kolkata lifting the championship.