A team of the Central Bureau of Investigation (CBI) raided the residence of former Bengaluru Police Commissioner Alok Kumar Thursday morning. The raids were conducted in connection with the phone tapping case.According to news agency ANI, a team of CBI officials arrived at  Alok Kumar's premises to conduct search operations. Kumar currently serves as ADGP, Karnataka State Reserve Police.

Earlier when the Karnataka government of HD Kumaraswamy hadsuffered turmoil, several MLAs had alleged that the chief minister and JD(S)leader was tapping the phones of his colleagues.

The Karnataka government led by B S Yediyurappa hadannounced a CBI probe after disqualified JD(S) MLA A H Vishwanath, who servedas the party's state president and turned rebel, accused the H D Kumaraswamydispensation of tapping phones and spying on more than 300 people, includinghim.

The central agency has taken over the investigation fromcyber-crime wing of the Bengaluru Police and registered a case againstunidentified people in August in the matter, officials said.

"It has come to the notice of the government that thereare apprehensions that phones of several ruling and opposition politicalleaders, their relatives, and other government officials have been interceptedin an illegal unauthorised unwarranted manner," the letter entrusting theprobe to the CBI said.