‘Abd al-Quddūs Jalāl ad-Dīn (Arabic: عبد القدوس جلال الدين), best known as Shah Makhdum (Bengali: শাহ মখদুম), and also known as Rupos, was a Sufi Muslim figure in Bangladesh.

He earned the nickname of Rupos as he was known to cover his face with a piece of cloth in the manner of a section of the saints of the Chishti Order.

Two years later, he migrated with his companions to Bagha in Varendra after hearing that contemporary Muslim preacher Shah Turkan and his comrades were murdered by the local tantric Raja Angsu Deo Chandavandi Varmabhoj and sacrificed to Mahakala.

[3] To avenge Turkan, Makhdum and his companions defeated the Raja and subsequently established a khanqah in Rampur Boalia (modern-day Rajshahi City).

During the Mughal period, Ali Quli Beg, a Twelver Shia and servant of Abbas the Great, constructed a square-shaped one-domed mazar (mausoleum) above the grave.