Even though all the sources I check say it’s in the eastern region, I took the test and apparently it is in the center of India. Dunno why the answer is that, but it is. I hope this helped!
The name Deccan comes from a Sanskrit word "Daksina" meaning South. This large plateau forms a triangle surrounded by 3 mountain ranges. It extends through many states of India, Andhra pradesh, Kerala, Tamil Nadu to name a few. It cover a major part of the southern India