In a major setback to the ruling National Conference in Jammu and Kashmir, Srinagar Lok Sabha member Aga Syed Ruhullah Mehdi on Tuesday formally announced his resignation from the parliamentary seat and party on the 26th death anniversary of his father. Mehdi said that after 24 years of his association, he was ending his relationship with the NC and also relinquishing the Lok Sabha seat SRINAGAR — In a major poltical development.