(Bloomberg Businessweek) -- On a January stroll around Sankey Tank, a verdant lake in Bengaluru, Kimsuka Iyer noticed that dozens of trees had been painted with red and black X’s and O’s. As a native of the city that many residents still call Bangalore, the 34-year-old marketing executive understood the symbols: The trees were to be cut down. She soon discovered the government had approved construction of a highway overpass along the...