The government beefed up security in the capital to maintain order ahead of the execution [AP]
The convictions triggered the country's deadliest violence since independence, with some 500 people killed, mainly in clashes between Jamaat-e-Islami activists and police.
There are fears the executions could spark fresh unrest in the Muslim-majority nation, which is reeling from a string of killings of secular bloggers as well as the murders of two foreigners in recent months.
Jamaat called a nationwide strike on Thursday, declaring Mujahid's original trial "farcical" and "aimed at eliminating" the party's leadership.
New York-based Human Rights Watch asked Bangladesh on Friday to halt the "imminent executions" of Mujahid and Chowdhury, citing "serious fair trial concerns surrounding their convictions".