Ajmer Sharif
Ajmer Sharif Dargah was built on a destroyed Hindu temple. Its Buland Darwaza has sculpted idols which were according to local tradition the earlier site of the Shiva temple as per “The Shrine and cult of Moinuddin Chisti of Ajmer, Oxford university press 1993”.
Both Ajmer Sharif Dargah and Adhai Din Ka Jhopra were built on Hindu temples. Defiled and destroyed, Hindu images were used to construct the walls of these mosques. An Idol of Vishnu could still be seen in one of its walls.
Swastikas could also be found on the walls of Ajmer Sharif Dargah and Adhai Din ka Jhonpra. This is reused material of the huge temple complex and university that was demolished to construct these mosques.
Witnessing the destruction of the Hindu temples of Ajmer, Chishti offered thanks to his Allah.
Source: https://twitter.com/BharadwajSpeaks/status/1361331950468825089