The Vijaynagar and the Brahmini kingdoms are always at war for various reasons. The delta region between Krishna and Tungabhadra along with Krishna Godavari delta is a major issue. It is a Marathawada country.
Khwaja Abu Malik Isami is the author of Futuh-al-Salatin is yet another elaborate account of the Delhi Sultanate. It consists of almost 12,000 verses. The Futuh-us-Salatin is a history of Muslim rule in India until 1349-50.