No two Indian cities have a greater love-loathe relationship than Delhi & Mumbai, and here&rsquos something to bring them closer. An expressway is being built to connect Mumbai to Delhi, cutting the distance time to merely 12 hours. If you&rsquove travelled between the two cities by road before, you would know that it takes approximately 24 hours to travel by NH-8. Currently the distance is 1,450km to connect Mumbai with Delhi by road, and the expressway project will reduce that to 1,250km.