who started the construction of qutab minar at delhi
Qutb Minar Qutab-Ud-Din-Aibak, founder of the Delhi Sultanate, started construction of the Qutub Minar's first storey around 1192. In 1220, Aibak's successor and son-in-law Shamsuddin Iltutmish completed a further three storeys. In 1369, a lightning strike destroyed the top storey. Firoz Shah Tughlaq replaced the damaged storey, and added one more. Sher Shah Suri also added an entrance to this tower while he was ruling and Humayun was in exile.[5]
Humayun's Tomb Humayun's tomb (Maqbaera e Humayun) is the tomb of the Mughal Emperor Humayun in Delhi, India. The tomb was commissioned by Humayun's first wife and chief consort, Empress Bega Begum (also known as Haji Begum),[1][2][3][4][5][6][7] in 1569-70, and designed by Mirak Mirza Ghiyas, a Persian architect chosen by her.[8][9] It was the first garden-tomb on the Indian subcontinent,[10] and is located in Nizamuddin East, Delhi, India, close to the Dina-panah Citadel, also known as Purana Qila (Old Fort), that Humayun founded in 1533. It was also the first structure to use red sandstone at such a scale.[11][12] The tomb was declared a UNESCO World Heritage Site in 1993,[10] and since then has undergone extensive restoration work, which is complete.[13] Besides the main tomb enclosure of Humayun, several smaller monuments dot the pathway leading up to it, from the main entrance in the West, including one that even pre-dates the main tomb itself, by twenty years; it is the tomb complex of Isa Khan Niyazi, an Afghan noble in Sher Shah Suri's court of the Suri dynasty, who fought against the Mughals, constructed in 1547 CE.