The Tanchoi brocades originated from china ,initially being part of the 19th century Parsi trade between Indian, china and England. They became popular saris among Parsis at that time ,and although modern tanchoi often use pastel or indianized versions of Chinese color schemes (yellow and purple)
It is believed that in the last half of 19th century, three parsi brothers called chhoi learned the technique of weaving these brocades in china and introduced it to Indian weavers in surat hence the name tanchoi, which literally means ‘three chhois’
Tanchoi sarees is a type of Amru brocade. In an Amru brocade the supplementary – weft patterning of these brocade is woven in silk, not in zari thread. The threads may be either untwisted, giving a thick line to the woven design, or they may be made of twisted yarns that produce a finer, denser pattern. This is a figured silk that is technically related to complex weaves because it has one or two warps and two to five weft colors often in the same shed. “The tanchoi is a densely patterned heavy fabric with no floats on the reverse; the unused threads are woven into the foundation at the back.