Wikipedia
Calinipaxa
Calinipaxa is a city in northern India described in ancient sources, and thought to be the modern Kanouge ( Kannauj), on the Ganges. It was first made known to the West through the expeditions of Seleucus Nicator to India in 303 BCE.
"The other parts of the country [beyond the Hydaspes, the farthest extent of Alexander's conquests] were discovered & surveyed by Seleucus Nicator: namely - from thence (the Hydaspes) to the Hesudrus 168 miles - to the river Ioames as much: and some copies add 5 miles more therto - from thence to Ganges 112 miles - to Rhodapha 119, and some say, that between them two it is no less than 325 miles. - From it to Calinipaxa, a great town 167 miles & a half, others say 265. - And to the confluent of the rivers Iomanes and Ganges, where both meet together, 225 miles, and many put thereto 13 miles more - from thence to the town Palibotta 425 miles - and so to the mouth of Ganges where he falleth into the sea 638 miles." Pliny the Elder, Natural history, Chap 21