VISAKHAPATNAM, June 17 -- On the electoral map of Andhra Pradesh, Araku sticks out like a sore, neglected thumb. A reserved parliamentary constituency for Scheduled Tribes (ST), Araku can be unwieldy for its representatives. It comprises assembly segments from four districts - Vizianagaram, Srikakulam, Visakhapatnam and East Godavari. The farthest ends from the north to south are about 400km apart, mostly covered with the dense forests of the Eastern Ghats. With a predominantly tribal population, this is among the most underdeveloped regions, not just in the state, but in all of India. With its remoteness, ethnic diversity, and multiplicity of tribal languages, the political rhythm of Araku can be quite distinct from the mainstream....