Though Qutb-ud-din Aibak started the construction of the Quwwat-ul-Islam mosque which was among the earliest Muslim monuments in Delhi, he could not complete them. These architectures were later completed by his successor Shamsuddin iltumishs. He started building the "Adhai Din Ka Jhopra" (meaning "Shed of 2 and half days"), a mosque in the Ajmer city of Rajasthan, India. It was commissioned by Qutb-ud-Din-Aibak, on orders of Muhammad Ghori, in 1192 CE. It was completed in 1199 CE, and further beautified by Iltutmish of Delhi in 1213 CE.