Cotton Silk Saree fabric is a hybrid fabric comprised of cotton and silk fibres. Despite the fact that it does not belong to any certain fabric. How to tell if it's real Chanderi. Weft thread is cotton, which is not widely used in textile products, while warp thread is un-degummed mulberry silk. The saree fabric texture is particularly delicate due to the un-degummed silk warp. The fabric isn't woven tightly. The tana, or warp, is the length-wise, spread out group of threads through which the bana, or weft, is woven back and forth in chanderi cloth. Only white and off-white cloth was woven in Chanderi from the beginning of weaving until the 1920s, with the ends fringed with zari or golden thread.