Two three decades back national parties were dominant everywhere but the biggest problem is that the national parties hardly understands the regional issues and those regional issues are best taken care by regional parties. Remember that INDIA can progress only if our rular india starts prograss i mean to say nation development should start from in i.e from rular india and then go outwards i.e towards urban india. Today we have hundreds of Multiplexes, and what not at the same time we have villages which are still strugling for electricity. Our national parties have badly failed to reach regional peiople and therefore you see regional parties comming up.