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.
The Tabaqat-i-Nasiri which was compiled in 1260 CE by the author Minhaj-i-Siraj and it gives a complete account of Muhammad of Ghur’s conquest of India and the history of the Delhi Sultanate up to 1260 CE.