He also criticized the West Bengal government's decision not to allow immersion of Durga idols on October 1, the day of Muharram.
Yechury said he could never think of incidents of lynching taking place in Bengal.
"It is very painful to see such incidents happening. Actually, these incidents are a result of competitive communalism that is being practised by the TMC and the BJP in Bengal to create communal polarization," Yechury told a press conference here.
The incident had taken place on Sunday. A mob allegedly lynched the two men after dragging them out of a pick-up van carrying cows at Barhoria village.
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Three persons were arrested in connection with the incident the day after.
On the state government's decision not to allow immersion of Durga idols on October 1, he asked why was it "differentiating and interfering"?
"If you differentiate, it sends out a wrong message. Let the leaders of the two groups or communities sit together and decide a way out.
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