national integration isnt done by communication with ANY particular language. its by a persons' heart and intentions to unite. you dont need hindi to unite people. Hindi will help us have a seamless linguistic experience since its a national laguage. heck, i'd been to tamil nadu recently where the taxiwallah dint speak hindi... but by jove! he spoke flawless english and we connected very well. the language wasnt important at all. just that he understood my problems to get across to another place in a hurry. i tried my broken tamil with him, as he dint know hindi. but he inturrupted to speak in english - much to my joy and surprise!