Samajwadi Party leader Amar Singh said Maoists and "some major parties" in West Bengal were complimenting each other to gain a foothold in the state.
"Some major parties in Bengal, I would not like to name them, are also behind encouragement of this violent politics because the Maoists do not have base in urban areas and these parties don't have base in rural areas," Singh said indicating Trinamool Congress.
He said these parties and the Maoists have "complimented" each other.
Asked whether he was referring to the Trinamool Congress, Singh said he did not want to join issues with Mamata Banerjee. "She is a friend," he added.