India and Japan have pledged to fast-track negotiations for a possible deal on nuclear energy. A civilian nuclear pact would open up the Indian market to Japan's nuclear technology. But the prospect of a deal is raising concerns among India's coastal communities. With memories of the Fukushima disaster in Japan still fresh, many are worried about the long-term impact of new projects. Al Jazeera's Nidhi Dutt reports from Tamil Nadu state in India.