Hefazat-e-Islam's central Nayeb-e-Ameer Prof Ahmad Abdul Quader was arrested from the capital's Agargaon area on Saturday evening.
He was arrested in the cases filed over the mayhem at Shapla Chattar, Motijheel on May 5, 2013, and recent violence centering the Indian Prime Minister Narendra Modi's Bangladesh visit.
Md Mahbub Alam, the joint commissioner of Dhaka Metropolitan Police's (DMP) Detective Branch (DB), confirmed the arrest to Jago News this evening.
TT/SU