Intellectuals, singers, writers and political activists staged a protest here on Sunday to denounce the killing of a Bangladeshi-American blog-writer in Dhaka last week.
"We strongly condemn the killing," said youth leader Amal Chakraborty, one of the organisers.
Avijit Roy (42), a bio-engineer working in the US, was hacked to death by two attackers wielding machetes in Bangladesh's capital Dhaka on February 26, when he was leaving a book fair with his wife Rafida Ahmed Banna, who was also seriously wounded in the attack.
Religious radicals had been threatening Avijit for his active campaign against Islamist extremism and for improving secularism in Bangladesh.