A Delhi court Thursday extended till October 17 the judicial custody of former finance minister P Chidambaram in the INX Media corruption case.The 74-year old sought home cooked food in Tihar jail where is lodged, citing medical ailments.CBI had registered an FIR on May 15, 2017, alleging irregularities in the Foreign Investment Promotion Board (FIPB) clearance granted to the INX Media group