Adhai-din-ka-Jhonpra-Moschee

Adhai Din Ka Jhonpra is a historic mosque in Ajmer, in the Indian state of Rajasthan. It is described as one of the oldest mosques in the north of the Indian subcontinent and as the oldest surviving monument in Ajmer. An early example of Indo-Islamic architecture, it kept many of its original Indian features, especially in its decorated pillars. Its name is rendered literally as "shed of two and a half days". The site is a Monument of National Importance and is visited today by people of all faiths.

According to the sources, construction was ordered in 1192 by Qutb al-Din Aibak, and the design is attributed to Abu Bakr of Herat. The mosque was completed in 1199 and was reinforced in 1213 by Shams al-Din Iltutmish of the Delhi Sultanate. Most of the building work was carried out by Hindu craftsmen working under Afghan supervisors.

The structure served as a mosque until 1947. After Indian independence it was handed over to the Jaipur branch of the Archaeological Survey of India. It is now visited as a notable example of a blend of Indian, Islamic and Jain architectural influences.