What is dadi?

Some articles on dadi:

Brahma Kumaris World Spiritual University - Activities and Recognition
... Current chief Brahma Kumaris administrator, Dadi Janki receives the GITAM (GITAM University - Visakhapatnam, AP, India) Honorary Doctorate conferred to eminent ... The article states "Dadi Janki ji, Chief Administrative Head of Brahma Kumaris is very special whose thoughts and actions inspire us to divinity and inculcate virtues and values in our ...