IS Calcutta soon going to be the country's biggest media battlefield? The market is rife with the buzz that three of the biggest newspapers in the country—The Times of India, The Hindu and The Indian Express—will be launching Calcutta editions in the next few months. None of the three would admit it officially, but media watchers are categorical that The Times is moving towards a launch in January or February, and that the Express top brass are thinking seriously about the East.