With reference to Sufism in Indian history, consider the following statements:
- Sheikh Ahmad Sarhandi was a contemporary of Ibrahim Lodi
- Sheikh Nasiruddin Chirag-I-Dehlavi was a disciple of Sheikh Nizamuddin Auliya
- Aurangzeb was a contemporary of Sheikh Salim Chisti
- Qadiri order of Sufis was first introduced in India by Sheikh Niamutullah and Makhdum Muhammad Jilani
Which of these statements are correct?