In India, I wasn't very lucky on the textile/bead search. Just before I left I understood that beads are produced mainly around Delhi, and the interesting regions for textile are up north too (Orissa, Gujarat...). I thought I would visit Arikamedu, an archeological site which was a major bead export town more than two thousands years ago. However I discovered in Pondicherry's museum that there was nothing to see there (that's why it wasnt mentioned in my guidebooks lol).
However I saw many treasures in shops, which I found very difficult not to buy (gorgeous women's traditional clothes). But I kept thinking about my beading friends :o)