It is situated adjoining the Bhagalpur Railway Station. Khanqah-i-Shahbazia was a highly reputed institution with a rich library and a rallying centre for scholars and men of learning. One of the five jurists invited by Aurangzeb for the compilation of his famous Fatwa-i-Alamgiri was Mir Muhammad Raadhi from Bhagalpur. In 1669 he received a daily allowance of three rupees and was later raised to the rank of an Amir.
Sheikh Nizam, another noted theologian of his times was also welcomed to the Mughal court.Khanqah-i-Shahbazia, Mullachak continues to be a flourishing seminary under the care of the 13th generation of the descendants of Maulana Shahbaz. The Sajjadah Nashin (direct descendent) is supposed to spend his life within the boundaries of the Khanqah.This place springs a number of surprises like the oldest Shahi Mosque wrapped in black dome. The typical Bengali roof over the medieval tombs houses the Kadam-i-Rasool (footprint of the prophet) and other memorabilia dating back to the medieval days. The library of the Khangah is rich in Arabic and Persian theological works, which includes hand written books dating back to the days of Maulana Shahbaz. One of the prized collection of the library includes the Holy Quran transcribed by Murshid Quli Khan, the Nawab of Murshidabad who was fond of donating his works to various Khanqahs and even setting aside an allowance for their daily broadcast.