Which ancient archaeological excavation site in Kerala, situated along the Bharathappuzha river basin, has yielded significant megalithic burial monuments and Iron Age artifacts?

💡 Solution & Explanation

Kunnattur in Kerala is an important archaeological site containing Iron Age megalithic urn burials that shed light on early southern cultures. Pattanam is primarily known as a maritime port site associated with Muziris. Ancient south Indian archaeology is increasingly emphasized in competitive history papers.