Ananta Bijoy Das was attacked by a masked gang wielding machetes in the north-eastern city of Sylhet, police said.
He wrote blogs for Mukto-Mona, a website once moderated by Avijit Roy, himself hacked to death in February.
Avijit Roy, a Bangladeshi-born US writer, had criticized religious intolerance.
He was killed in a machete attack while he was visiting the Bangladeshi capital, Dhaka, as he returned with his wife from a book fair in the city. His widow suffered head injuries and lost a thumb.
In March, another blogger, Washiqur Rahman, was hacked to death in Dhaka.
The attack on Avijit Roy prompted massive protests from students and social activists, who accused the authorities of failing to protect critics of religious bigotry.
An Islamist has been arrested over Avijit Roy’s murder, while two madrassa students have been arrested over Washiqur Rahman’s killing.
Prosecutors and Donald Trump’s attorneys delivered opening statements and the first witness was called on…
The House of Representatives has finally approved $61 billion in new US military aid for…
The real estate market in the United States has always been a gauge for economic…
France's first lady Brigitte Macron will be the subject of a biopic series. Production company…
A first glimpse of the new business venture from Meghan Markle has been teased on…
Court has wrapped up for the first day of Donald Trump's long-awaited hush-money trial in…