The Bhakti movement originated in Tamil speaking region of south India and spread northwards through India.
The Bhakti Movement was a rapid growth of bhakti beginning in this region with the Saiva Nayanars (4th–10th centuries) The Pallavas ruled parts of South India with Kanchipuram as their capital.
The recent excavations in Alagankulam archaeological site suggests that Alagankulam is one of the important trade centre or port city in Sangam Era.
Three dynasties, namely the Chera, Chola and Pandya, ruled the area of present-day Tamil Nadu and Kerala.
Tamil architecture reached its peak during Pallava rule.
The Pandyan capital Madurai was in the deep south away from the coast.
The early history of the people and rulers of Tamil Nadu is a topic in Tamil literary sources known as Sangam literature.
Numismatic, archaeological and literary sources corroborate that the Sangam period lasted for about six centuries, from 300 BC to AD 300.
The period of their rule is sometimes referred to as the "Dark Age" in Tamil history and little is known about it.
The Kalabhras were expelled by the Pallavas, Mutharaiyar, Badami Chalukyas and Pandyas in the 6th century.