A Delhi court has extended till 30th of this month the interim protection from arrest granted to Congress leader P Chidambaram and his son Karti in Aircel-Maxis cases filed by CBI and Enforcement Directorate. <br />''<br />''Special Judge OP Saini extended the protection after senior advocate Abhishek Manu Singhvi, appearing for the Chidambaram, made a request in this regard. The request was made after Solicitor General Tushar Mehta, appearing for the agencies, sought more time to complete the probe.<br />''<br />''<span style="color: #222222;">The case relates to alleged irregularities in grant of Foreign Investment Promotion Board approval in the Aircel-Maxis deal.</span><br />