What is rigvadic period?

Answer 1

It's Rigvedic Period... from the vedic period.

The origin of the Vedic civilization and its relation to the Indus Valley civilization, Indo-Aryan migration and Gandhara Grave culture related cultures remains controversial and politically charged in Indian society, often leading to disputes on the history of Vedic culture. The Rigveda is primarily a collection of religious hymns, and allusions to, but not explanation of, various myths and stories, mainly in the younger books 1 and 10. The oldest hymns, probably in books 2-7, although some hold book 9, the Soma Mandala, to be even more ancient, contain many elements inherited from pre-Vedic, common Indo-Iranian society. Therefore, it is difficult to define the precise beginning of the "Rigvedic period", as it emerges seamlessly from the era preceding it. Also, due to the semi-nomadic nature of the society described, it cannot be easily localized, and in its earliest phase describes tribes that were essentially on the move. RigVedic Aryans have a lot in common with the Andronovo culture and the Mittanni kingdoms as well as with early Iranians. The Andronovo culture is believed to be the site of the first horse-drawn chariots.