Consider the following statements: 1. Narasimha Saluva ended the Sangama dynasty and seized the throne for himself and started the Saluva dynasty. 2. Vira Narasimha deposed the last Saluva ruler and seized the throne for himself. 3. Vira Narasimha was succeeded by his younger brother, Krishnadeva Raya. 4. Krishnadeva Raya was succeeded by his half-brother, Achyuta Raya. Which of the statements given above are correct?

1 Statement 1 is correct. Narasimha Saluva, through usurpation, ended the Sangama dynasty's rule and established the Saluva dynasty in the Vijayanagara Empire. 2 Statement 2 is correct. Vira Narasimha, belonging to the Tuluva dynasty, deposed the last ruler of the Saluva dynasty and seized the throne. 3 Statement 3 is correct. Vira Narasimha was succeeded by his younger brother, the celebrated emperor Krishnadeva Raya. 4 Statement 4 is correct. After Krishnadeva Raya's death, he was succeeded by his half-brother, Achyuta Raya.