Four more persons, including a councillor of a municipal corporation, were arrested in connection with the extortion case on Wednesday night, police sources said.

They were produced before Judicial Magistrate-I M. Vijaykumar, who remanded them in 15 days custody.

Earlier, S.K. Nawab, town secretary of the DMK, also arrested in connection with the case, has been remanded to judicial custody. — Staff Reporter

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