Why Mangalagiri silk sarees are expensive?

Mangalagiri sarees are expensive, because these sarees are unique variety, woven from cotton and has the most characteristic features such like zari on the border and no woven designs on the body. Mangalagiri fabric is produced by weaving with the help of pitlooms from combed yarn by warp and woof interlacing. The fabric then undergoes the process of dyeing