Detectives arrested three suspected members of banned militants outfit Harkat-ul-Jihad-al-Islami (Huji) from Kotowali thana area in Old Dhaka on Friday night. One of the arrested person was identified as Mawlana Nazim Uddin, president of its Dhaka North unit.Tipped off, a team of Detective Branch (DB) conducted a drive in the area and arrested them, said Masudur Rahman, deputy commissioner (media) of Dhaka Metropolitan Police (DMP).