Such attacks are aimed at creating fissures among different communities, the speakers said at the rally.
Poet Subodh Sarkar said those behind the gunning down of five innocent persons at Kheronibari village in Assam wanted to polarise people along communal lines.
He called for defeating the gameplan of such forces and save the country.
If such attacks were not checked, the country will face a grave crisis, Sarkar said at the rally held beside the Academy of Fine Arts in the central part of the city.
Painter Suvaprasanna condemned the attack on the poor people and asserted that Bengal would stood by them in such hour.
Unidentified gunmen in battle fatigue shot dead five individuals, including three members of a family, near Kheronibari village in the district on Thursday night.
A four-member TMC delegation met family members of the five victims in Tinsukia on Sunday.
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