Similarly, the Sanskrit plays Anargharāghava and Rajasekhara's Bālarāmāyaṇa of the ninth century refer to a shrine of Agastya on or near Adam's Peak (Sri Pada), the tallest mountain in Sri Lanka (ancient Tamraparni), from whence the river Gona Nadi/Kala Oya flows into the Gulf of Mannar's Puttalam Lagoon.