Sangam literature formed a very important source for the reconstruction of the history of South India. It was written in:

Explanation

Sangam literature is the name given to the earliest available Tamil literature. It is dated between 400 BCE and 300 CE, although most of the work is believed to have been composed between 100 CE and 250 CE. The word ‘Sangam’ literally means association. Here, it implies an association of Tamil poets that flourished in ancient southern IndiAns.