Introduction to the Queen's Step Well: The Queen's Step Well (Adalaj Step Wall) was built by an Indian Queen Udayamati named Mother of the Sun in 1064 AD after her husband Bhimad It was built after the death of King Wa and took 20 years to build. It has a history of nearly a thousand years. It was not until the late 1970s that the development and protection of this ancient well began, and it was completed in the early 1990s.