new delhi a delhi court on thursday granted time till may 4 to the cbi and ed to complete probe in the aircelmaxis matter against former union minister p chidambaram and his son kartithe enforcement directorate told special judge ajay kumar kuhar that letters rogatory lrs have been sent to four countries and their response were awaited in connection with the caselr is issued by courts on the request of an investigation agency when it wants information from another countrythe court had on january 28 revived the aircelmaxis cases filed by the central bureau of investigation and the enforcement directorate against chidambaram and his son that were earlier adjourned sine diethe case was adjourned sine die without fixing any date for hearing on september 5 last year with the court noting that the two probe agencies were seeking adjournment after adjournmentthe probe agencies were investigating how karti chidambaram received clearance from the foreign investment promotion board fipb for the aircelmaxis deal in 2006 when his father was the union finance ministerthe cbi and the ed had alleged that p chidambaram as finance minister during the united progressive alliance rule granted approval to the deal beyond his capacity benefitting certain persons and received kickbacks