Answer: The answer is the Deccan plateau. This Deccan Plateau would be a massive plateau between western and southern India. This reaches a level of hundred metres (330 ft) in the north, and much more than 1,000 metres in the south, producing an uplifted triangle inside the south-faced triangle of the main Indian coastline. Throughout this Deccan Plains, irrigation is rare.
This plateau is surrounded by two mountain lines, the Western and Eastern Ghats, that rise from adjacent coastal plains and almost meet near India’s southernmost tip. It is separated from this Gangetic plain to the north by the Satpura and Vindhya Mountains, which define its northern border.