The simplest Northeast trip is one car, one driver, picked up at the airport and dropped back at the end. Sometimes that works. Sometimes a state border means a permit for the vehicle, a new car, or a different starting point.
This guide covers each border a typical trip crosses, and what it means for your vehicle. Where we have a fuller guide on one border, it's linked rather than repeated.
The map at a glance
| Crossing | One car through? | What it takes |
|---|---|---|
| Assam → Arunachal (Tawang, Ziro) | Yes | ILP for every traveller. The vehicle needs no separate permit. |
| Assam → Meghalaya (Shillong, Sohra) | Usually, with the right taxi | Depends on the vehicle's tourist permit. See below. |
| Assam → Nagaland (Kohima, Hornbill) | Yes | ILP for every traveller, checked at the border. |
| Siliguri / NJP → Gangtok, Pelling | Yes | Photo ID at Rangpo. RAP for foreign nationals. |
| Gangtok → Tsomgo, Nathu La, North Sikkim | No | Sikkim-registered vehicle with a permit. |
| Siliguri ↔ Darjeeling, Kalimpong | Yes | Nothing for Indian travellers. |
| Assam → Bhutan | Sometimes | Entry permit for the vehicle at the border, plus Bhutan's rules. |
| Guwahati → Sikkim by road | Possible, rarely worth it | About 12 hours of plains driving. Fly or take the train to NJP. |
Assam to Arunachal: one car works
This is the easiest long circuit. A Guwahati or Tezpur car can take you to Tawang, Dirang, Bomdila and Ziro and back. The checks at Bhalukpong and the other entry points are for passengers: every Indian traveller needs an Inner Line Permit and every foreign national a Protected Area Permit. The vehicle doesn't need its own.
What matters more is the vehicle class. Tawang and Sela Pass need a hill-ready SUV or Innova, not a sedan. See Guwahati to Tawang.
Assam to Meghalaya: it depends on the taxi
Guwahati to Shillong is the busiest tourist sector in the Northeast, and since August 2026 it has also been the most contested. Whether an Assam-registered taxi can take you through Meghalaya depends on its tourist permit and on current arrangements between the taxi associations. We covered it in full in can an Assam taxi take you to Meghalaya.
The practical answer: book a car that can do Meghalaya sightseeing, not just the airport transfer, and confirm that in writing.
Sikkim: the border is at Gangtok, not Rangpo
A West Bengal car from NJP or Bagdogra can drive into Sikkim and drop you in Gangtok, Pelling or Namchi. The permit roads beyond Gangtok, to Tsomgo, Nathu La, Zuluk and North Sikkim, take only Sikkim-registered vehicles, so most Sikkim trips use two cars. Our Sikkim vehicle rules guide explains where the line falls.
Darjeeling and Kalimpong: no friction
The Darjeeling hills are in West Bengal, and the same Siliguri car can do Darjeeling, Kalimpong and Mirik, then drop you in Gangtok. A popular plan is NJP to Darjeeling, Darjeeling to Gangtok, and Gangtok to NJP. One West Bengal car can do every leg except the Sikkim permit days. See Gangtok and Darjeeling in one trip.
Bhutan: a border with its own rules
Indian vehicles can enter Bhutan at Phuentsholing and Samdrup Jongkhar with a vehicle permit, but Bhutan has its own rules on tourist vehicles, guides and the Sustainable Development Fee. Many travellers change to a Bhutanese vehicle at the border. Read Bhutan from Guwahati by road before you plan it.
Guwahati to Sikkim by road: possible, rarely sensible
The two halves of the Northeast that travellers combine most often, Assam and Meghalaya on one side and Sikkim and Darjeeling on the other, are about 450 km apart on the plains highway through north Bengal. That's roughly 10 to 12 hours of flat driving, with nothing on the way most travellers want to see.
It's usually better to treat them as two trips joined by a flight or train: fly Guwahati to Bagdogra, or take one of the many Guwahati–NJP trains, and pick up a second car at the other end.
So, one car or several?
- One car is enough for: Assam alone. Assam with Arunachal. Siliguri, Darjeeling and Kalimpong with Gangtok and Pelling.
- Plan a change for: the Sikkim permit roads, Bhutan, and any trip that joins the Assam side to the Sikkim side.
- Check the vehicle in writing for: Meghalaya, while the tourist-taxi arrangements are in flux.
How we plan multi-state trips
We quote the whole route as one trip. Where a change is needed, at Gangtok for the north or at the Bhutan border, we book both vehicles and time the handover. You get each driver's details the evening before. See our car rental cities and point-to-point cabs.
Frequently asked questions
Yes, if it's a hill-ready vehicle with a Meghalaya-compatible tourist permit. In practice that means an Innova or SUV, booked for the whole circuit, with ILPs filed for Arunachal.
The ILP is for passengers. Tourist vehicles cross with the passengers' permits checked at the gate. Drivers carry their own papers.
Usually. Changing vehicles means a new pickup charge and sometimes an empty return for the first car. The exception is when the first car would sit idle for days, for example while you are on Sikkim's permit roads in a local vehicle.
In most of the Northeast, yes, with the same passenger permits. The exceptions are Sikkim's permit roads, where outside vehicles aren't allowed, and Bhutan, which has its own rules for foreign-registered vehicles.
For tourist cars, the permit that matters is the All India Tourist Permit, which lets a commercial vehicle carry tourists across state lines. A taxi with only a state permit is limited to its home state unless it takes a temporary permit for each state it enters. Ask your operator which permit the car has. Meghalaya and Sikkim add their own rules on top, covered above.