My sister was a student at IIT Delhi in Textile Engineering and shared the disappointing experience that made her regret her decision a lot. The department is in its infancy and is the least demanded branch. Likewise, it offers the least average package at around INR 13 LPA and the lowest at INR 6 LPA.
The branch does not do justice to the institute's brand name and thus I strongly recommend you against joining Textile Engineering at IIT Delhi.