The Sajjada Nashin (hereditary administrator) also refers as Khalifa (a successor) is the descendant of a Sufi or Pir and in some instances descendant of a disciple of a Sufi, A Sajjada particularly tends to the shrine which is made over the Sufi's tomb or grave, known as a Dargah or Mazar. A sajjada is a key person who held and leads the traditional Sufi rituals in Dargah's daily activities and particularly during Urs—(death anniversary).
- As is the case where Pir Dr. Syed Mehdi Raza Subzwari is the current sajjada nashin atthe shrine of one of the most respected saint Hazrat Qalandar Lal Shahbaz, in the ancient town of Sehwan Sharif, the southern province of Sindh in present day Pakistan.