new delhi the enforcement directorate ed has asked former finance minister p chidambarams son karti to provide documents that the agency has sought from him in connection with his links to 2g scam tainted firm aircelmaxiskartis office responded to the eds summons asking him to appear with documents in person or send those through a representative by seeking time on the grounds that he was travelling sources said the ed might accept the request and set a fresh date for karti to furnish documentsthe move acquires significance in view of taunts from karti as well as his father that ed has no case against him the agency has asked karti or his authorised representative to produce details of his financial and otherwise relationship with advantage strategic consulting pvt ltd chennai since its incorporation and also details of advantage strategic consulting singapore pte ltdthe summons signed by ed deputy director rajeshwar singh the investigating officer in the 2g case emphasized that the attendance of karti p chidambaram is necessary in connection with the said investigationthough the former finance minister and his son have always maintained that karti had long severed his links with advantage strategic consulting pvt ltd a firm that had alleged financial transactions with aircelmaxis the ed is believed to be in possession of a will that indicates beneficial interest of chidambaram junior with the firm in questionthe agency summoned karti six months after it raided his offices in chennai in a series of raids starting late last year the ed recovered vital clues with details of kartis investments in multiple firmsthe agency also questioned a number of his close associates during this period and is believed to be armed with evidence that could nail his alleged connivance with the 2g tainted firm besides other questionable business dealsin the 2g scam case related to aircelmaxis eds rajeshwar singh had earlier interrogated former telecom minister dayanidhi maran and his brother kalanithi and had attached properties worth rs 742 crore the chargesheet filed against the maran brothers accused them of money laundering of an amount equal to the assets attached singh has been behind many highprofile investigations including coalgate augustawestland vvip chopper deal and money laundering probe against jaganmohan reddy in which the agency has attached properties worth rs 2500 crorethe summons issued to karti is significant considering that the ed investigation in the aircelmaxis investments in india was looking into the most controversial aspect of the case the foreign investment promotion boards approval granted by the finance ministry then headed by chidambaram as fmthe supreme court has been closely monitoring the probe in the aircelmaxis case in 2014 the apex court had intervened by restraining the revenue department from removing singh from the 2g probe and repatriating him to his parent cadre up police