Correct Answer:
Option C - Raichur Doab region is a triangular region of land in the southern Indian states of Andhra Pradesh and Karnataka lying between the rivers Tungabhadra and Krishna. The doab had been an area of contention between the Bahmani kingdom and the Vijayanagar empire.
C. Raichur Doab region is a triangular region of land in the southern Indian states of Andhra Pradesh and Karnataka lying between the rivers Tungabhadra and Krishna. The doab had been an area of contention between the Bahmani kingdom and the Vijayanagar empire.