Complex sentence: His Mazar Sharif (Holy grave) is called Rauza Derwaza The History of his period is not very clear, but Mulla Abdul Qadir Badauni has written in his book Multakhab-Al-Tawarikh that Khairabad was developed by Sultan Ibrahim bin Masood bin Mahmood.
Split into simpler sentences: His Mazar Sharif (Holy grave) named Rauza Derwaza The History of his period is not very clear, but Mulla Abdul Qadir Badauni has written in his book Multakhab-Al-Tawarikh. That Khairabad was developed by Sultan Ibrahim bin Masood bin Mahmood.