The deceased was identified as Ashikur Rahman Rohit, 20, BCL activist of MES College.
Officer-in-charge of Bakolia police station Nezam Uddin said some miscreants attacked Rohit on 8 January in Dewan Bazar of Bakolia in Chattogram city, leaving him severely injured.
He was admitted to the CMCH where he succumbed to his injuries on Friday morning, OC said.