| Succession: | 10th Bahmani Sultan |
| Reign: | 17 April 1436 — 7 May 1458 |
| Predecessor: | Ahmad Shah I Wali |
| Successor: | Humayun Shah |
| Birth Name: | ‘Alau’d-din Zafar Khan |
| Burial Place: | Bahmani tombs |
| Issue: | Humayun Shah Hasan Khan Yahya Khan |
| Father: | Ahmad Shah I Wali |
| Religion: | Islam |
Alau’d-din Ahmad Shah was the tenth sultan of the Bahmani Sultanate. He was considered a benevolent ruler, albeit weak in administration. His reign is marked by rebellions.
The rift between the Dakhanis, or old-comers, and Afaqis, or new-comers[1] worsened during his reign.
Alauddin was the eldest son of Ahmad Shah I Wali.
During his father's reign, Alauddin participated in military campaigns.
Upon his coronation, he assumed the title of Alauddin Ahmad Shah.
The first major military campaign during Alauddin's reign began against Vijayanagara, over the non-payment of tribute by Deva Raya II. Alauddin deputed his brother Muhammad Khan to demand tribute by force. This venture was successful and Deva Raya sent "eight lacs of huns, twenty elephants and two hundred girls adept in the arts of dance and song".
During his return from Vijayanagara, Muhammad Khan launched a rebellion against the sultan on the premise that according to the will of Ahmad Shah, Alauddin and Muhammad were designated to rule the kingdom jointly. Muhammad Khan captured several forts including Raichur, Mudgal and Solapur.
He fled to the jungle and was pursued by Alauddin's soldiers, who had express orders not to harm the prince. Muhammad was pardoned and awarded the jagir of Rajachal.
Alauddin himself commanded the army at Mudgal. A peace treaty was signed and the arrears of tribute were paid in full.
Mushir ul Mulk besieged the Afaqis in the fort of Chakan. He informed the sultan that they had insulted the king. Alauddin ordered the execution of all of them.
They lured the Afaqis into the camp, and massacred practically all of them, including many Sayyids.
The king removed Dakhnis from office, including Prime Minister Mian Minallah.
The massacre further strained Dakhni-Afaqi relations.
In 1455, Jalal Khan, a brother-in-law of Alauddin and the jagirdar of Nalgonda, declared himself king. This was due to a rumour of Alauddin's death as he had been suffering from a wound on his shin. Alauddin marched on Nalgonda, and Jalal's son Sikandar enlisted Mahmud Khalji to join their rebellion. In 1456, Mahmud invaded Berar.
At Mahur, Alauddin commanded a force of 180,000 men. He divided his army into three contingents. Faced with an army thrice the size of his own, Mahmud Khalji withdrew leaving behind a token force of 1000 men.
Mahmud Gawan was put in charge of suppressing the revolt. Jalal was pardoned by the sultan and allowed to retain Nalgonda.
Alauddin is credited with building a large hospital at Bidar. He endowed several villages, the revenue from which would fund the hospital.
Alauddin died on 3 April 1458, from the malignant wound on his shin.
Alauddin was described as a benevolent ruler, but weak in administration.
The Dakhni camp also included the Habashis