Which one of the following Tamil texts deals with grammar?

Tolkappiyam, authored by Tolkappiyar, is the oldest surviving Tamil work on grammar and poetics. It is a foundational text of Sangam literature. Unlike modern grammar books, it also provides extensive information on the social, economic, and political conditions of the Sangam Age. It is divided into three sections: Ezhuttadikaram (letters/phonology), Solladikaram (words/morphology), and Poruladikaram (subject matter/social conventions).

• Silappadikaram (by Ilango Adigal) and Manimekalai (by Sathanar) are the famous twin epics of Tamil literature.
• Padirruppattu is one of the Eight Anthologies (Ettuthogai) and consists of ten sections, each praising a Chera king.