Which of the following hill ranges forms a prominent geographical barrier along the eastern boundary of Telangana, separating it from the coastal plains of Andhra Pradesh and comprising ancient quartzites and slates?

💡 Solution & Explanation

The Nallamala Hills are a parallel series of hill ranges located along the Eastern Ghats, stretching across parts of Andhra Pradesh and Telangana, composed predominantly of ancient Dharwarian quartzites and slates. The Aravalli Hills are located in northwestern India spanning Rajasthan and Gujarat. Cardamom and Nilgiri hills form part of the southern Western Ghats complex. The Nallamala forests are densely covered with dry deciduous vegetation and harbor rich wildlife.