Former Jammu and Kashmir chief minister Mehbooba Mufti Tuesday approached the Delhi High Court seeking quashing of summons issued to her by the Enforcement Directorate (ED) for March 15 in a money laundering case. The 61-year-old PDP leader, who was released last year after more than a year in detention following the scrapping of Jammu and Kashmir's special status, has been served notice to appear at the ED headquarters in the national capital.