mahā-puṇyā
pratīcī ca mahā-nadī
ye pibanti jalaṁ tāsāṁ
manujā manujeśvara
prāyo bhaktā bhagavati
vāsudeve ’malāśayāḥ
Meaning: My dear King, the inhabitants of Satya-yuga and other ages eagerly desire to take birth in this Age of Kali, since in this age there will be . . .
many devotees of Nārāyaṇa. These devotees will appear in various places but will be especially numerous in South India. O’ master of men, in the Age of Kali those persons who drink the waters of the holy rivers of Draviḍa-deśa, such as the Tāmraparṇī, Krtamālā [Vagai], . . .
Payasvinī, the extremely pious Kāverī and the Pratīcī Mahānadī, will almost all be purehearted devotees of Vāsudeva.”
Some of the Āzhvār-s, namely Poigai Āzhvār, Bhoothath Āzhvār, Peyāzhvār, and Thirumalisai Āzhvār, were from the Dvāpara Yuga. But the remaining 7 are from . . .
Kaliyuga. Nammāzhvār is believed to have taken birth 43 days into Kaliyuga and (as the Śrīmad Bhāgavatam hints) was born in Āzhvārthirunagiri on the banks of the Tāmraparṇī (Thamirabarani) River. This verse can probably accommodate all Śrī Vaiṣṇava Pūrvācārya-s as well! 😄