Maulana Fazlur Rehman, leader of the opposition in the National Assembly, underwent an angioplasty for a clogged artery at a private hospital on Thursday. Rehman had a heart attack the other day and was admitted to a private hospital, Online reported. Hospital sources said that the opposition leader was later shifted to a private room and will be discharged from the hospital today (Friday). Punjab Chief Minister Pervaiz Elahi, NWFP Chief Minister Akram Durrani and leaders of the Muttahida Majlis-e-Amal visited the hospital.