A huge number of the megalithic structures have been discovered during a recent archaeological excavation near the Malampuzha dam in Palakkad, Kerala.
The ASI discovered ancient inscriptions at Kadapa's Lankkamala Reserve Forest in Andhra Pradesh.
The survey led to the discovery of three rock shelters.
One of these contained prehistoric paintings are depicting the animals, geometric patterns, and human figures.
The paintings are dating back to the Megalithic (Iron Age) and the early historic periods (2500 BCE-2nd century CE).
In Odisha’s Ratnagiri,the thrree colossal Buddha heads, a brick stupa with a crisscross design, a rectangular chaitya complex, and a slew of votive stupas featuring deities like Tara, Chunda, and Manjusri were found.