Scientific techniques such as organic residue analysis are rewriting our understanding of ancient Indian food cultures. Discuss with reference to recent findings from South Indian sites.

Organic residue analysis (ORA) pulls dietary biomarkers, such as lipids, out of the pores of ancient pottery, where they can survive for thousands of years [1]. Used together with zooarchaeology, it moves the study of ancient Indian food beyond guesses from texts. It is now giving direct chemical evidence from South India as well.

How ORA changes the method

• Direct evidence: charred grains and bones only suggest what people ate. ORA shows what was actually cooked or stored in a vessel [1].
• Two independent lines of evidence: pot residues show what was cooked. Bones and cut marks show which animals were kept or killed [1].
• Filling a regional gap: Indus pottery had already shown dairy, meat and plant products from c. 2500 BC. Similar evidence for South India was missing [1].

Recent findings from Keezhadi and Gottiprolu

• Dairying: cow milk and advanced plant processing date to 600–100 BC. The authors conclude these societies depended mainly on agriculture, cattle rearing and dairying [1].
• Agro-pastoral base: at Keezhadi (Tamil Nadu, 6th–2nd century BC), cattle, buffalo and goat make up most of the 70 bone fragments studied. Gottiprolu (Andhra Pradesh) adds sheep, horse, dog and pig [1].
• Hunting as a supplement: antelope and wild boar bones at Keezhadi carry cut marks [1].
• Trade context: ASI found that Gottiprolu was an early historic trade centre inside a massive brick enclosure. Roman-style amphorae and its closeness to the coast suggest maritime trade [2]. Its diet may therefore reflect a well-connected town, not a typical village.

Limits of the evidence

• Pilot scale: only four potsherds were analysed, as a proof of concept [1].
• Absence is not proof: no fish was found even though both sites are on river banks. The vessels tested may simply not have been used for fish [1].
• Narrow base: two sites from different centuries cannot stand for all of "South India".

ORA and zooarchaeology together place early historic South India alongside the Indus Valley as a region with documented dairying and mixed diets. This weakens a narrative centred on the north-west. Three steps can turn this pilot into a solid account of India's varied food heritage:

• ASI can sample many types of vessel.
• Indian laboratories can use isotope techniques.
• Researchers can cross-check the chemistry against Sangam literature.

This would serve the Article 51A(f) duty to value and preserve India's composite culture.