What are some of the best road routes in India?

Answer on @Quora by Nargis Ansari to What are some of the best roads/routes in India? https://www.quora.com/What-are-some-of-the-best-roads-routes-in-India/answer/Nargis-Ansari?srid=ndBp&share=99da1891

1. Road Trip from Delhi to Manali to Leh: Every Backpacker Biker’s First Love

Time: 25 hours
Distance: 1,019 km
National Highway: NH 1 & NH 21

A road trip in the Himalayas will always be accompanied by gorgeous landscapes wherever you look. The Delhi-Manali-Leh road trip is one of the best road trips in India and an absolutely enthralling journey to take. Though the roads may get a little treacherous and tricky on your way to Leh, the awesome scenic beauty makes up for it. It is a road trip every daring traveler must take.
Where to eat: Have an early breakfast at Murthal. Eat at Sukhdev’s dhaba on the way for some butter loaded stuffed paranthas or you could stop by McDonald’s, Barista, Subway, or Haveli.
Where to stay: Take a stopover at Bilaspur while travelling from Delhi to Manali. From Manali to Leh, you could spend a night at Circuit houses in Lahaul Valley.

2. Road Trip from Mumbai to Goa: Because Dil Chahta Hai

Time: 10 hours 41 minutes (via the Pune-Kolhapur Route) & 11 hours 52 minutes (via the Chiplun-Ratnagiri Konkan route)
Distance: 590 km (via the Pune-Kolhapur Route) & 577 km (via the Chiplun-Ratnagiri Konkan route)
National Highway: NH 4 or NH 66

If you loved the reel road trip, you’ll love the real version even more! It is preferred you take thePune-Kolhapur Route as it is safer, smoother road in case you’re travelling by car. For the more adventurous ones, traveling with friends on a bike seeking scenic beauty of the Western Ghats, & lesser toll booths along the way, take the Chiplun-Ratnagiri Route that gets rocky, tricky and narrow at many places. While on the Chiplun-Ratnagiri route, you can also check out the Karnal Bird Sanctuary. The best time to take this road trip is between December and January.
Where to eat: Various restaurants at Satara & Kolhapur if you’re on NH 4, and Chiplun
Where to stay: Hotels at Kolhapur and Chiplun

3. Road Trip from Jaipur to Ranthambore: From the Royal Land to the Royal Beast

Time: 3 hours 14 minutes
Distance: 158 km

One can enjoy beautiful views of the mustard fields and picturesque villages like Balsi & Lalsot on this road trip. It is one of the most popular road trips in india, as huge numbers of people flock to the Ranthambore National Park to spot a tiger or two. The roads are in a decent condition, though one might experience uneven roads for a mere stretch of 20-25 kms on the journey. One can take the route via Tonk to avoid the rough road. Thebest time to take this road trip is between October and June, as the Park is closed rest of the time.
Where to eat: A number of shops and dhabas available on the way.

4. Road Trip from Guwahati to Tawang: Monks, Mountains, & Morning Prayer

Time: 14 hours 27 minutes
Distance: 566 km
National Highway: NH 52 & NH 229

The road trip offers breathtaking views of snow-clad mountains and lets you witness the marvels of the buddhist culture in the North-East. Driving up the winding paths on the hills require skill and experience. The best time to take this road trip is between March and October, as the rest of the time the roads may be blocked due to snow.
Where to eat: Shops and stalls offering momos, maggi and tea along the way.
Where to stay: Budget hotels at Tezpur

For more info on such trips, read this blog: 25 Spectacular Road Trips In India For That Passionate Traveler In You

Happy tripping! :)