"Initially, the cloth is bleached with cow urine" (K. Vijayan, chief technician of the Handloom Development Weavers Society in Balaramapuram, Kerala)
Granted, this is the land of the holy cow. And I admire this man's forthrightness. But perhaps he could have highlighted the neem, tulsi, and turmeric dyes. I have a hunch that minimizing one's association between urine and a consumer product is a good thing.
(Image from bitmapr on Flickr)