The 'Sanchi Stupa', commissioned by Emperor Ashoka, is one of the oldest _____ structures in India.
- stone
- brick
- wood
- terracotta
Answer: stone
Great Stupa at Sanchi (Madhya Pradesh, 3rd century BCE) is among India's oldest stone structures. Originally brick, Ashoka encased it in stone. Features toranas (gateways) with exquisite Buddhist narrative reliefs.