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Recent Developments:

• The Archaeological Survey of India (ASI) has identified the first known Indian epigraphical reference to Halley’s Comet in a copper-plate inscription dated Śaka 1378 (1456 CE) preserved at the Mallikarjunaswamy Temple, Srisailam, Andhra Pradesh.
• The inscription, written in Sanskrit using the Nagari script, records the appearance of a comet and a subsequent meteor shower, events that correspond with the documented appearance of Halley’s Comet in 1456 CE.
• The discovery provides the first inscriptional evidence linking medieval Indian records with a globally observed astronomical event and highlights the role of temples as repositories of scientific observations.

Geographical and Ecological Setting of Srisailam:

Location and Physical Features:

• The Srisailam temple complex is situated on the plateau region of the Nallamala Hills, a major hill system of the Eastern Ghats located in Andhra Pradesh.
• The site overlooks the deep gorge of the Krishna River, where the river flows through a narrow rocky canyon traditionally known as Patalaganga.
• Dense dry deciduous forests dominate the surrounding landscape and contribute to the ecological significance of the region.
• The area lies within the Nagarjunsagar-Srisailam Tiger Reserve, which is the largest tiger reserve in India in terms of geographical extent.

Religious and Cultural Significance of Srisailam:

Unique Sacred Status:

• Srisailam occupies a unique position in Indian sacred geography because it functions simultaneously as a Jyotirlinga and a Shakti Peetha.
• The shrine represents Lord Shiva in the form of Mallikarjuna Swamy and Goddess Parvati in the form of Bhramaramba Devi.
• It is regarded as the only major pilgrimage centre where these two important traditions of Hindu worship converge at the same site.
• Both presiding deities are traditionally considered Swayambhu, indicating self-manifested forms rather than sculpted icons.
• Historical literature frequently refers to the shrine as Dakshina Kailasa, emphasizing its importance in southern India.

Historical Evolution of Srisailam:

Dynastic Patronage and Development:

• The earliest historical reference to the region is associated with the Satavahana period, where inscriptions indicate the antiquity of the settlement.
• The Badami Chalukyas contributed to early structural development through stone architecture and land grants.
• The Kakatiya dynasty, including rulers such as Rudrama Devi, strengthened and expanded the temple complex through donations and renovations.
• The Reddy rulers, particularly Prolaya Vema Reddy and Anavema Reddy, improved pilgrimage infrastructure by constructing stone stairways and rest mandapas.
• The Vijayanagara Empire transformed Srisailam into a major royal religious centre through extensive architectural additions and patronage.
• The Qutb Shahi rulers maintained continuity in temple administration and revenue support despite political transitions.

Architectural Features of the Temple Complex:

Dravidian Temple Architecture:

• The temple represents a mature form of Dravidian architecture characterized by monumental enclosures and elaborate gateways.
• Massive stone Prakara walls surround the complex and contain sculptural panels depicting warfare, hunting scenes, elephants, processions and Shaivite narratives.
• Multi-tiered Gopurams dominate the entrances and display characteristic post-Vijayanagara architectural elements.
• The temple mandapas contain intricately carved pillars featuring Yalis, mythical composite creatures commonly found in South Indian temple art.
• Structural engineering techniques were employed to support the heavy stone roofing systems.

The 1456 CE Copper-Plate Inscription:

India’s First Epigraphic Reference to Halley’s Comet:

• The copper-plate inscription dated 28 June 1456 CE records the appearance of a comet and an associated meteor shower.
• The inscription was issued during the reign of Vijayanagara ruler Mallikarjuna and records a land grant to a Vedic scholar.
• The celestial event described in the inscription corresponds closely with the globally documented appearance of Halley’s Comet in 1456 CE.
• The inscription demonstrates that medieval Indian scholars carefully observed and documented unusual astronomical phenomena.
• The discovery challenges the notion that temple inscriptions were restricted only to religious or administrative matters and highlights their scientific value.

Understanding Halley’s Comet:

Scientific Characteristics:

• Halley's Comet is one of the most famous periodic comets visible from Earth.
• It is classified as a short-period comet with an orbital period of approximately 75–76 years.
• The comet consists primarily of ice, dust and rocky material left over from the formation of the Solar System.
• As it approaches the Sun, solar radiation causes sublimation of volatile materials, producing a bright coma and characteristic tail.
• The comet follows a retrograde orbit, moving in the opposite direction to the planets around the Sun.
• Its orbit is highly elliptical and extends beyond the orbit of Neptune at its farthest point.
• The comet was named after Edmond Halley, who successfully predicted its return using Newtonian mechanics.
• Halley’s Comet last appeared in 1986 and is expected to return again in 2061.

Astronomy in Ancient and Medieval India:

Scientific Tradition and Observational Knowledge:

• Ancient Indian literature frequently refers to comets using terms such as Dhumaketu, indicating long-standing awareness of transient celestial objects.
• Indian astronomical traditions combined mathematical calculations with systematic sky observations.
• Texts associated with Varahamihira, Aryabhata and later scholars contributed significantly to observational astronomy.
• Temple institutions often served as centres for preserving astronomical knowledge, calendrical systems and scientific records.
• The Srisailam inscription provides direct inscriptional evidence supporting the continuity of this tradition.

Importance of Epigraphy in Historical Reconstruction:

Role of Inscriptions as Historical Sources:

• Epigraphy provides reliable primary evidence for political, social, economic, cultural and scientific developments.
• Copper-plate inscriptions are particularly valuable because they preserve original records with precise dates and contextual information.
• Astronomical references contained in inscriptions assist historians in establishing accurate chronologies.
• Such records enable cross-verification of historical events with independently documented celestial phenomena.
• The Srisailam inscription demonstrates how epigraphy can contribute simultaneously to historical and scientific research.

Significance of the Discovery:

Historical, Scientific and Cultural Relevance:

• The inscription strengthens evidence for the advanced observational capabilities of medieval Indian scholars.
• It contributes valuable historical data for reconstructing the long-term orbital history of Halley’s Comet.
• The discovery highlights the multidisciplinary role of temples as centres of religion, administration, education and scientific observation.
• It enriches understanding of the interaction between astronomy, culture and governance in medieval India.
• The finding enhances the importance of Srisailam in both Indian heritage studies and the global history of astronomy.

Value Addition for UPSC:

Important Facts and Concepts:

• First Indian Epigraphic Reference to Halley’s Comet: Srisailam Copper-Plate Inscription, 1456 CE.
• Location: Srisailam, Andhra Pradesh.
• Dynasty: Vijayanagara Empire.
• Script: Nagari.
• Language: Sanskrit.
• Ruler Mentioned: Mallikarjuna of Vijayanagara.
• Comet Designation: 1P/Halley.
• Orbital Period: Approximately 75–76 years.
• Last Appearance: 1986.
• Next Expected Appearance: 2061.
• Largest Tiger Reserve in India: Nagarjunsagar-Srisailam Tiger Reserve