Step 1: Identify the sculpture and its location.
The 'Vishnu lying on Sheshnaga' (Anantashayana Vishnu) panel is one of the most famous relief sculptures in Indian art. It is located at the Dashavatara Temple in Deogarh.
Step 2: Determine the material and period.
The Dashavatara Temple is a Gupta period temple, dating to around the 5th century CE. The art and architecture of this period are characterized by masterful work in carved stone. The sculpture panel itself is a prime example of Gupta-era stone carving, known for its elegance, detail, and classical balance.