The Rashtrakuta empire controlled most of the western sea board of the subcontinent which facilitated its maritime trade. The Gujarat branch of the empire earned a significant income from the port of Bharoch, one of the most prominent ports in the world at that time. The empire's chief exports were cotton yarn, cotton cloth, muslins, hides, mats, indigo, incense, perfumes, betel nuts, coconuts, sandal, teak, timber, sesame oil and ivory. Its major imports were pearls, gold, dates from Arabia, slaves, Italian wines, tin, lead, topaz, storax, sweet clover, flint glass, antimony, gold and silver coins, singing boys and girls (for the entertainment of the royalty) from other lands. Trading in horses was an important and profitable business, monopolised by the Arabs and some local merchants. The Rashtrakuta government levied a shipping tax of one golden "Gadyanaka" on all foreign vessels embarking to any other ports and a fee of one silver "Ctharna" ( a coin) on vessels travelling locally.