Some of the Important National Highways are:
* NH 1: New Delhi - Ambala - Jalandhar - Amritsar.
* NH 2: Delhi - Mathura - Agara - Kanpur - Allahabad - Varanasi - Kolkata.
* NH 3: Agra - Gwalior - Nasik - Mumbai
* NH 4: Thane and Chennai via Pune and Belgaun.
* NH 5: Kolkata - Chennai
* NH 6: Kolkata - Dhule
* NH 7: Varanasi - Kanyakumari
* NH 8: Delhi - Mumbai (via Jaipur, Baroda and Ahmedabad)
* NH 9: Mumbai - Vijaywada
* NH 10: Delhi - Fazilka
* NH 11: Agra - Bikaner
* NH 12: Jabalpur - Jaipur
* NH 24: Delhi - Lucknow
* NH 27: Allahabad - Varanasi
* NH 28: Barauni - Lucknow
* NH 29: Gorakhpur - Varanasi
* NH 56: Lucknow - Varanasi
* NH - 7 is the longest highway of India.
Note:
*
The Golden Quadrilateral Project connecting the four Metropolitan cities of Delhi, Mumbai, Chennai and Kolkata covering a total distance of 5846 km is currently being processed. It is the first phase of the National Highways Development Project (NHDP). Total cost of the project is Rs 300 billion, funded largely by the government's special petroleum product tax revenues and government borrowing. As of June '08, 5669 km of the intended road has been 4-laned.
*
The North South - East West Corridor (NS-EW) is the largest ongoing expressway project in India. It is the second phase of the National Highways Development Project (NHDP), and consists of building 7300 kilometers of four/six lane expressways connecting Srinagar, Kanyakumari, Porbandar and Silchar. The final completion date of the project has been set as December 2009.
*
Maharashtra has the maximum length of surfaced roads in India.
Road Transport in India
