| 1 | NH 44 (Old NH 7) | 3,745 | Srinagar → Kanyakumari |
| 2 | NH 27 | 3,507 | Porbandar (Gujarat) → Silchar (Assam) |
| 3 | NH 48 (Old NH 8) | 2,807 | Delhi → Chennai |
| 4 | NH 52 | 2,317 | Sangrur (Punjab) → Ankola (Karnataka) |
| 5 | NH 16 (Old NH 5) | 1,711 | East coast of West Bengal → Chennai (Tamil Nadu) |
| 6 | NH 2 | ~1,465 | Northeast Highway: Dibrugarh (Assam) → Tuipang (Mizoram) |
| 7 | NH 19 (Old NH 20) | 1,435 | Delhi → Kolkata |
| 8 | NH 3 | ~1,231 | Atari (India-Pakistan border) → Manali → Leh (Ladakh) |
| 9 | NH 4 | ~1,200 | Andaman Trunk Road (ATR), Andaman & Nicobar Islands |
| 10 | NH 1 | ~712 | Jammu & Kashmir → Ladakh, via high-altitude passes like Zoji La |