A letter in this regard was sent to the top cop of West Bengal, seeking a phone number of Kumar on which he could be contacted, they added. The CBI has set up a special team to trace Kumar, who allegedly "evaded" the agency's notices to appear before it in connection with the Saradha Ponzi scheme case, the sources said. They added that Kumar did not appear for questioning in spite of the CBI notices, after the Kolkata High Court withdrew the protection given to him from arrest on last Friday.  --- PTI