The Konkan is a stretch of land by the western coast of India, bound by the river Daman Ganga at Damaon in the north, to Anjediva Island next to Karwar town in the south; with the Arabian Sea to the west and the Deccan plateau to the east. The hinterland east of the coast has numerous river valleys, riverine islands and the hilly slopes known as the Western Ghats; that lead up into the tablelands of the Deccan. The Konkan region has been recognised by name, since at least the time of Strabo, in the third century CE. It had a thriving mercantile port with Arab tradesmen from the 10th century onwards. The best-known islands of Konkan are Ilhas de Goa, the site of the Goa state's capital at Panjim; also, the Seven Islands of Bombay, on which lies Mumbai, the capital of Maharashtra & the headquarters of Konkan Division.