kimkhwāb was extremely popular with the rich, the great centres of brocade weaving were Benares (Vārānasi), Ahmādābād, Surat, and Aurangābād. Benares is now the most important centre of kimkhwāb production. When Alexander invaded Gandhara in 327 BC, block-printed textiles from India were noticed. According to the Greek historian Arrian: "The Indians use linen clothing, as says Nearchus, made from the flax taken from the trees, about which I have already spoken. And this flax is either whiter in colour than any other flax, or the people being black make the flax appear whiter. They have a linen frock reaching down halfway between the knee and the ankle, and a garment which is partly thrown round the shoulders and partly rolled round the head. The Indians who are very well-off wear earrings of ivory; for they do not all wear them. Nearchus says that the Indians dye their beards various colours; some that they may appear white as the whitest, others dark blue; others have them red, others purple, and others green. Those who are of any rank have umbrellas held over them in the summer. They wear shoes of white leather, elaborately worked, and the soles of their shoes are many-coloured and raised high, in order that they may appear taller." Evidence from the first century AD shows the Buddhas were portrayed as wearing saṃghāti that forms a part of the Kasaya of Buddhist monks. During the Maurya and Gupta period, the people wore both stitched and non-stitched clothing. The main items of clothing were the Antariya made of white cotton or muslin, tied to the waist by a sash called Kayabandh and a scarf called the Uttariya used to drape the top half of the body. New trade routes, both overland and overseas, created a cultural exchange with Central Asia and Europe. Romans bought indigo for dyeing and cotton cloth as articles of clothing. Trade with China via the Silk Road introduced silk textiles using domesticated silkworms. Chanakya's treatise on public administration, the Arthashastra written around third century BC, briefly describes the norms followed in silk weaving. A variety of weaving techniques were employed in ancient India, many of which survive to the present day. Silk and cotton were woven into various designs and motifs, each region developing its distinct style and technique. Famous among these weaving styles were the Jamdani, Kasika vastra of Varanasi, butidar, and the Ilkal