Banda Bahadur, a Sikh leader, revolted against the Mughals following the assassination of Guru Gobind Singh. He was eventually captured and executed during the reign of Farukh Siyar.
Option 1: Bahadur Shah. This option is incorrect because Banda Bahadur was executed during the reign of Farukh Siyar, not Bahadur Shah.
Option 2: Aurangzeb. This option is incorrect because Banda Bahadur was captured and executed after the reign of Aurangzeb.
Option 3: JahandarShah. This option is incorrect because Banda Bahadur was executed after the reign of Jahandar Shah.
Option 4: Farukh Siyar. This is the correct answer. Banda Bahadur was captured and executed during the reign of Farukh Siyar.
Therefore, the correct answer is option 4, Farukh Siyar.