Social activist Medha Patkar's health has started deteriorating a week into her indefinite hunger strike to demand swift rehabilitation of thousands affected by floods in areas surrounding the Sardar Sarovar Dam. She launched the agitation -- called the "Narmada Chunauti Satyagraha" -- at Chhota Barda in Madhya Pradesh's Barwani district on August 25, and 10 more villagers joined her four days later.