The incident happened when batsman Birender Vivek Singh hit straight and Dinda attempted the catch on his follow through but it slipped from his hand and hit his forehead, a Bengal support staff member said.
"Dinda looked fine as he completed the over before returning back to the dressing room. As a precautionary measure, he was taken for scans. There is nothing alarming but he has been advised two days of rest," a CAB official told PTI.
Bengal failed to make the final at home last season after finishing third in the Super League Group B.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)