The swaying movement is facilitated by the specific construction of the minaret bases, which use a complex system of arches and stone masonry designed to absorb seismic energy.
When one minaret is shaken, the vibrations are transmitted to the other through the central stone span, causing it to tremble while the main body of the mosque remains stationary.
The mosque complex was never fully completed, as evidenced by the lack of an extensive prayer hall typically found in larger congregational mosques of the Sultanate period.
British architects and researchers during the colonial era extensively documented the site in an attempt to replicate the anti-seismic technology in modern construction.
Access to the upper levels of the minarets has been prohibited for decades due to safety concerns regarding the structural integrity of the internal spiral staircases.
Jhulta Minar, also known as the Sidi Bashir Mosque, is distinguished by its earthquake-resistant architectural design where the minarets vibrate when a force is applied to one of them. The structure consists of three stories with carved stone balconies connecting the two swaying minarets. It was built during the late 15th century, likely by Sidi Bashir, an attendant of Sultan Ahmed Shah. Despite the vibrations caused by external force, the connecting stone passageways remain stable and intact. The mosque serves as a testament to medieval Indian masonry techniques that emphasize structural flexibility. It is located in the Gomtipur area of Ahmedabad. The vibrating mechanism remains a subject of study for engineers and architects interested in seismic resilience.
From the ground level facing the two minarets to capture the symmetrical stone carvings and the central connecting passage.
Observe the minarets from a distance to appreciate the scale and proportion of the stone carvings.
Visit during the early morning to avoid the intense heat of the Ahmedabad afternoon, as the site has limited shaded areas.
Engage with a local guide to understand the specific structural theories behind the masonry.
Do not attempt to climb the minarets or touch the structure, as the stone is fragile and climbing is strictly prohibited for preservation.
Maintain a respectful demeanor as it is a historical religious site; remove footwear before stepping onto the stone platform.
