The office of AICC general secretary K C Venugopal has filed a complaint with Kerala police chief Anil Kant alleging illegal cloning of his mobile number by hackers and making fraudulent calls for ulterior motives. In a tweet posted on Wednesday carrying the copy of the complaint filed with the state police chief, Venugopal said: "Since yesterday, hackers are using caller ID spoofing and impersonating my phone number and making spam calls. Everyone is alerted to report any suspicious calls and avoid responding to such hackers."