Foreign Minister Shah Mehmood Qureshi has said that the process of back-channel parleys with India faces difficulties, a private TV reported. Talking to media after attending the 10th convocation of Bahauddin Zakaria University in Multan on Saturday Qureshi said that the United States has been serious for the talks between Pakistan and India. He said India would have to sit on the table for the talks as the nuclear powers have no option except to hold peace dialogue.