The Nizari Ismailis are a branch of the Ismaili sect within Shia Islam. They trace their spiritual lineage to Ali ibn Abi Talib, the cousin and son-in-law of the Prophet Muhammad. Nizari Ismailis believe in a living Imam, currently Aga Khan IV, who provides guidance and interpretation of faith. Nizari Ismailis are known for their emphasis on education, social justice, and community service. They have a rich cultural heritage and are active in various fields, including business, healthcare, and the arts. Their practices include regular prayers, community gatherings, and charitable activities.