The complicated alliances of the empire and the five Deccan sultanates meant that he was continually at war.
In one of these campaigns, he defeated Golconda and captured its commander Madurul-Mulk, crushed Bijapur and its Sultan Ismail Adil Shah, and restored Bahmani sultanate to the son of Muhammad Shah II.

The highlight of his conquests occurred on 19 May 1520 where he secured the fortress of Raichur from Ismail Adil Shah of Bijapur after a difficult siege during which 16,000 Vijayanagara soldiers were killed.
The exploits of the military commander, Pemmasani Ramalinga Nayudu of the Pemmasani Nayaks, during the Battle of Raichur were distinguished and lauded by Krishnadevaraya.
It is said that 700,000-foot soldiers, 32,600 cavalry, and 550 elephants were used in the Battle of Raichur.
Finally, in his last battle, he razed to the ground the fortress of Gulburga, the early capital of the Bahmani sultanate.
His empire extended over the whole of South India.

In 1524, Krishnadevaraya made his son Tirumala Raya the Yuvaraja (crown prince).
The prince did not survive for long: he was poisoned to death.
Suspecting the involvement of Timmarusu, Krishna Deva Raya had his trusted commander and adviser blinded.
At the same time, Krishnadevaraya was preparing for an attack on Belgaum, which was in the Adil Shah's possession.
Around this time, Krishnadevaraya took seriously ill.
He died soon after in 1529.
Before his death, he nominated his brother, Achyuta Deva Raya as his successor.
The complicated alliances of the empire and the five Deccan sultanates meant that he was continually at war. In one of these campaigns, he defeated Golconda and captured its commander Madurul-Mulk, crushed Bijapur and its Sultan Ismail Adil Shah, and restored Bahmani sultanate to the son of Muhammad Shah II.
The highlight of his conquests occurred on 19 May 1520 where he secured the fortress of Raichur from Ismail Adil Shah of Bijapur after a difficult siege during which 16,000 Vijayanagara soldiers were killed. The exploits of the military commander, Pemmasani Ramalinga Nayudu of the Pemmasani Nayaks, during the Battle of Raichur were distinguished and lauded by Krishnadevaraya. It is said that 700,000-foot soldiers, 32,600 cavalry, and 550 elephants were used in the Battle of Raichur. Finally, in his last battle, he razed to the ground the fortress of Gulburga, the early capital of the Bahmani sultanate. His empire extended over the whole of South India.
In 1524, Krishnadevaraya made his son Tirumala Raya the Yuvaraja (crown prince). The prince did not survive for long: he was poisoned to death. Suspecting the involvement of Timmarusu, Krishna Deva Raya had his trusted commander and adviser blinded. At the same time, Krishnadevaraya was preparing for an attack on Belgaum, which was in the Adil Shah's possession. Around this time, Krishnadevaraya took seriously ill. He died soon after in 1529. Before his death, he nominated his brother, Achyuta Deva Raya as his successor.
Krishnadevaraya