Nelcynda

According to the Periplus, numerous Greek seamen managed an intense trade with Muziris:

Then come Naura (Kannur) and Tyndis, the first markets of Damirica or Limyrike, and then Muziris and Nelcynda, which are now of leading importance. Tyndis is of the Kingdom of Cerobothra; it is a village in plain sight by the sea. Muziris, of the same kingdom, abounds in ships sent there with cargoes from Arabia, and by the Greeks; it is located on a river (River Periyar), distant from Tyndis by river and sea five hundred stadia, and up the river from the shore twenty stadia. Nelcynda is distant from Muziris by river and sea about five hundred stadia, and is of another Kingdom, Ay Kingdom. This place also is situated on a river, about one hundred and twenty stadia from the sea...."

— The Periplus of the Erythraean Sea, 53-54

Pliny the Elder (c. 23- 77 CE) gives a description of voyages to India in the 1st century CE. He refers to many Indian ports in his work The Natural History.[4]

To those who are bound for India, Ocelis (On the Red Sea) is the best place for embarkation. If the wind, called Hippalus (Southwest Monsoon), happens to be blowing it is possible to arrive in forty days at the nearest market in India, "Muziris" by name. This, however, is not a very desirable place for disembarkation, on account of the pirates which frequent its vicinity, where they occupy a place called Nitrias; nor, in fact, is it very rich in articles of merchandise. Besides, the road stead for shipping is a considerable distance from the shore, and the cargoes have to be conveyed in boats, either for loading or discharging. At the moment that I am writing these pages, the name of the king of this place is Caelobothras (Keralaputras). Another port, and a much more convenient one, is that which lies in the territory of the people called Neacyndi, Bacare (Puhar) by name. Here king Pandion (Pandya) used to reign, dwelling at a considerable distance from the market in the interior, at a city known as Modiera (Madurai). The district from which pepper is carried down to Barace in boats hollowed out of a single tree is known as Cottonara (Kuttanadu).

Kollam (Nelcynda) shares fame with Kodungallur (Muziris) as an ancient sea port on the Malabar coast of India from early centuries of the Christian era. Kollam had a sustained commercial reputation from the days of the Phoenicians and the Romans. Pliny (23-79 AD) mentions about Greek ships anchored at Musiris and Nelkanda. Musiris is identified with Kodungallur (then ruled by the Chera kingdom) and Nelkanda (Nelcyndis) with Quilon or Kollam (then under the Pandyan rule). The inland sea port(kore-ke-ni) was also called Tyndis. Kollam was the chief port of the Pandyas on the West Coast and was connected with Korkai (Kayal) port on the East Coast and also through land route over the Western Ghats. Spices, pearls, diamonds and silk were exported to Egypt and Rome from these two ports on the South Western coast of India. Pearls and diamonds came from Ceylon and the South eastern coast of India, then known as the Pandyan kingdom.[6][7][8] Yule identifies Nelcynda as Kallada. That would also satisfy the mention "This place also is situated on a river, about one hundred and twenty stadia from the sea...."[9] Yule writes

That Nelkynda cannot have been far from this is clear from the vicinity of the Red Hill of the Periplus. There can be little doubt that this is the bar of red laterite which, a short distance south of Quilon, cuts short the backwater navigation, and is thence called the Warkalle Barrier. It forms abrupt cliffs on the sea, without beach, and these cliffs are still known to seamen as the Red Cliffs. This is the only thing like a sea cliff from Mount D'Elv to Cape Comorin""

— Notes on the Oldest Records of the Sea-route to China from Western ASia

This assumption is possible from the mention "This place also is situated on a river, about one hundred and twenty stadia from the sea....". But there are no evidences of Niranam being an ancient port. Barace can be identified as Varakkai.

Caldwell is said to have identified it with Kannetri[10]

Musiris has been identified with Muyirikota and Nelkynda with Kannetri. Caldwell's Dravidian Grammar, Introduction, 97

— Gazetteer of the Bombay Presidency