Deputy Commissioner (Detective Department) Barrackpore Commisionerate C Sudhakar today said Ananya Biswas, a resident of Khardah, was arrested two days ago on a charge of faking Banerjee's voice demanding cash from two senior TMC leaders in the district.
"Didi bolchi" (Didi speaking) was what the woman told chairman of Titagarh municipality Prashanta Chowdhury who received the call first.
Chowdhury in his complaint to the police alleged that Biswas had asked for over Rs 5 lakh for some welfare activity over the phone four days back.
The police later found out that the telephone number belonged to Ananya Biswas, Sudhakar said.