MUMBAI, Nov. 21 -- It will be a journey into uncharted territory for both India and Bangladesh in the pink-ball Test starting on Friday. How the SG pink ball will behave at various stages of the game on its debut is a mystery that will unfold at Eden Gardens from Friday. It is the first day-night Test in India. At best, the players' preparations are based on the results and patterns of play in day-night Tests around the world....