2nd option is correct.

Historians and Indologists regard the Sangam period as the ‘classical age’ of the Tamils. The Sangams flourished in Pandya Kingdom.

The Pandyan or Pandiyan or Pandian dynasty was an ancient Tamil dynasty, one of the three Tamil dynasties, the other two being the Chola and the Chera. The kings of the three dynasties were referred to as the Three Crowned Kings of Tamilakam.