<span style="color: #222222;">Filing status reports of investigation in the Aircel-Maxis cases involving former Finance Minister P Chidambaram and his son Karti before a Delhi court, the ED said an active investigation into the matter was going on. The CBI stated that letter rogatory has been sent to Malaysia for which response is awaited.<br />'' <br />'' Additional Solicitor General Sanjay Jain, appearing for the probe agencies, submitted the status report of the ED's investigation in a sealed cover. CBI has already filed its charge sheet in the case.<br />'' <br />'' The probe agencies were investigating how Karti Chidambaram received clearance from the Foreign Investment Promotion Board for the Aircel-Maxis deal in 2006 when Chidambaram was the Union Finance Minister.<br />'' <br />'' The CBI and the ED had alleged that P Chidambaram, as finance minister during the UPA rule, granted approval to the deal beyond his capacity benefitting certain persons.</span><br />'' <br />''  <br />