The arrestees are—Md Jowel Mia, 21, and Md Shakik Hossain alias Sujan, 20.
Ariful Islam Sajal, 22, was reportedly killed by miscreants after he protested against their verbal harassment of his female companion Sanjida Akter Dolon in Hazaribagh area on October 29. He was a student of class-XI of Mohammadpur Government College and a resident of Lalbagh area.
A case was filed with Hazaribagh police station accusing 14-15 people on October 30.
Based on secret information, a team of Rab-2 conducted a raid at Aziz Khan Road of Rayer Bazar under Hazaribagh police station on Tuesday and arrested Jowel and Sujan.
During preliminary interrogation, they allegedly confessed their involvement in the Sajal killing incident, said ASP Jahid Ahsan of the Rab-2 battalion headquarters.