The Aravalli Mountain Range, also known as Arawali Parwat or Aravali Parvat, is one of the oldest geological features on Earth, representing a foundational pillar of India’s ecological identity. Formed approximately 2 billion years ago during the Proterozoic era, the Arawali mountain range in India traverses nearly 700 km (430 miles) from Gujarat, through Rajasthan and Haryana, before culminating in the national capital of Delhi.