High Quality Content by WIKIPEDIA articles! National Highway 8 (NH 8), is a National Highway in India that connects the Indian capital city of New Delhi with the Indian Financial capital city of Mumbai. The highway passes through the State capitals of Gandhinagar and Jaipur, as well as important cities like Gurgaon, Ahmedabad, Surat and Vadodara. The total Length is 1,375 km (854 mi).