Naqshbandia Silsilah, a Sufi order, was spread in India by two Sufi saints and formed two chains or lineages. One chain is linked with Shaykh Ahmad Sirhindi who is also described as Mujaddid Alf Thaani (reviver of the second millennium); his chain is called Naqshbandia Mujaddidia. The other chain was associated with his contemporary Sufi saint Syedna Ameer Abul-Ula Ahrari. A resident of Agra, Ameer Abul-Ula was a descendant of the Sufi saint Khwaja Ubaidullah Ahrar. It is because of his name that this chain is known as Naqshbandia Abul-Ulaiya.