Adalaj Stepwell or Rudabai Stepwell is a stepwell located in the small town of Adalaj, close to Gandhinagar city in the Indian state of Gujarat. It was built in 1498 in the memory of Rana Veer Singh Vaghela cheif

Stepwells are wells, cisterns or ponds with a long corridor of steps that descend to the water level. Stepwells played a significant role in defining subterranean architecture in western India from 7th to 19th century. Some stepwells are multi-storeyed and can be accessed by a Persian wheel which is pulled by a bull to bring water to the first or second floor. They are most common in western India and are also found in the other more arid regions of the Indian subcontinent, extending into Pakistan. The construction of stepwells is mainly utilitarian, though they may include embellishments of architectural significance, and be temple tanks.