The correct answer is A. Mir Syed Ali Hamadan.
Khanqah of Shah Hamadan is a Sufi shrine located in the Mehrauli area of Delhi, India. It is dedicated to Mir Syed Ali Hamadan, a 13th-century Sufi saint from Hamadan, Iran. The khanqah was built in the 16th century by the Mughal emperor Akbar. It is a two-storeyed building with a central courtyard. The main hall of the khanqah is decorated with intricate tile work and calligraphy. The khanqah is a popular pilgrimage site for Sufis from all over the world.
Option B is incorrect because Nizamuddin Aulia was a Sufi saint who lived in Delhi in the 13th century. He is not associated with the Khanqah of Shah Hamadan.
Option C is incorrect because Sultan Sikander was a 15th-century ruler of the Lodhi dynasty. He is not associated with the Khanqah of Shah Hamadan.
Option D is incorrect because the Khanqah of Shah Hamadan is devoted to Mir Syed Ali Hamadan.