William Irvine describes the location of Firoznagar in the Numismatic Supplement XIV, (87), p.580. as Raichur.
He remarks in his note: 'that it is the new name by which 'Alamgir Aurangzeb disguised Raechor (Nizam's Territories), as he did so many other places. In the M'asir-i-'Alamgiri...... we have an entry headed "Capture of Raechor" which states that on the 26th Safar 1101 (29-12-1689 N.S.), 33rd year, the Bakhshi-ul-Mulk, Ruhulla Khan, took the fort of Raechor, which received the name Firoznagar. In AH1117 (1706), year 50, Chin Qilich Khan Bahadur, was appointed faujdar of Firoznagar'.