The Congress on Thursday night named veteran leader Kamal Nath as Madhya Pradesh next chief minister after hours of hectic parleys held by the party chief Rahul Gandhi with senior party leaders in the national capital amid a debate on the old versus the new guard. Flanked by Jyotiraditya Scindia, the other senior leader from the state who was in contention for the top post, Nath said that as the new chief minister he would ensure all promises made by the Congress party are fulfilled and that Madhya Pradesh future was secure.