Rig Veda - It is the oldest veda. It is divided into 10 mandals and contains 1028 hymns. These hymns are in praise of Gods and Goddesses, like Indra, Varun, Agni, Abha, etc. These hymns are composed in Vedic Sanskrit.
Megaliths - The term literally means ‘big stone’. In many places like the Deccan, south India, north-east and Kashmir, huge stone boulders arranged in circular patterns have been found. They were perhaps used to denote a burial sites or graves. These stone boulders are known as megaliths.