Identify the incorrect statement about Kampana and his achievements :
1
Kampana was the Yuvaraja during the reign of Bukkaraya I of the Vijayanagara Empire.
2
Kampana defeated the Madurai Sultanate and merged it into the Vijayanagara Empire.
3
Kampana's wife Gangadevi wrote the book "Madhuravijayam" in Telugu
4
None of the above