"They (the eight) will be hanged to death until they are dead," pronounced speedy trial tribunal-4 judge ABM Nizamul Haque at the packed courtroom as six convicts appeared in the dock.
Two other death penalty convicts and 11 of the 13, who were awarded the life term, were tried in absentia as they were on the run to evade the justice.
Under the Bangladesh law, the High Court must review death penalties even if the convicts do not appeal against the lower court verdicts.
Bangladesh Chhatra League (BCL) is the student front of the Awami League.
Sutrapur police filed a murder case in this regard on the same day. On June 2, charges were framed against the 21 Chhatra League activists. The murder drew flack on the then ruling Awami League.
Reacting to the verdict, Das's brother said, "I am satisfied...We got the justice.