Saif-ud-din Soz is a senior Indian politician from Jammu and Kashmir who has been associated with the Indian National Congress party for most of his career. He has served as a Union Minister and has been a prominent Congress leader from the state. While he has had interactions with other regional parties like the National Conference, his primary political affiliation has been with the Congress party. BSP is a Uttar Pradesh-based party, while PDP is another J&K party that he was not directly associated with.